Microcontroller-based multifunctional electronic switch and lighting apparatus having the same

A microcontroller based electronic switch for controlling lighting performance of an LED lamp configured with a plurality of LED lighting loads comprising:

• a first controllable switching element, electrically connected between a first LED lighting load for emitting light with a first color temperature and a power source;
• a second controllable switching element, electrically connected between a second LED lighting load for emitting light with a second color temperature and said power source;
• a first detection device for detecting a first external control signal and converting said first external control signal into a first message carrying sensing signal;
• a second detection device for detecting a second external control signal and converting said second external control signal into a second message carrying sensing signal;
• and
• a microcontroller through a first control pin receives said first message carrying sensing signal generated by said first detection device, said microcontroller through a second control pin receives said second message carrying sensing signal generated by said second detection device, wherein said microcontroller through a third control pin is electrically coupled to said first controllable switching element, wherein said microcontroller through a fourth control pin is electrically coupled to said second controllable switching element, wherein said microcontroller respectively controls conduction state or cutoff state of said first controllable switching element and said second controllable switching element to control electric power transmissions from said power source respectively to said first LED lighting load and to said second LED lighting load according to said first message carrying sensing signal and said second message carrying sensing signal generated respectively by said first detection device and said second detection device;
• wherein said first color temperature is higher than said second color temperature;
• wherein said first detection device is a touch less interface to receive and convert said first external control signal into said first message carrying sensing signal interpretable to said microcontroller;
• wherein said second detection device is a direct touch interface to receive and convert said second external control signal into said second message carrying sending signal interpretable to said microcontroller;
• wherein said first message carrying sensing signal and said second message carrying sensing signal are characterized with a signal format of a short voltage signal, a long voltage signal, a plurality of short voltage signals, a plurality of voltage signals or a combination of said short voltage signal and said long voltage signal generated in a preset time interval;
• wherein the short voltage signal and the long voltage signal are respectively defined either by a time length of a voltage signal or by the time length of a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said first message carrying sensing signal or said second message carrying sensing signal, said microcontroller manages according to said signal format of said first message carrying sensing signal or said second message carrying sensing signal to perform at least one of various working modes including at least an on/off switch control mode, a dimming control mode, a color temperature tuning control mode, a dimming and color temperature tuning control mode, and a delay shutoff control mode;
• wherein when said first controllable switching element and said second controllable switching element are in conduction state, said microcontroller further controls electric power transmission levels from said power source respectively to said first LED lighting load and to said second LED lighting load according to said signal format of said first message carrying sensing signal or said second message carrying sensing signal received, wherein said microcontroller through said third control pin outputs a first control signal to control a conduction rate of said first controllable switching element, said microcontroller through said fourth control pin outputs a second control signal to control said conduction rate of said second controllable switching element;
• wherein said microcontroller is an integrated circuit programmable for generating said first control signal and said second control signal, or an application specific integrated circuit (ASIC) custom made for generating said first control signal and said second control signal.

A lighting apparatus comprising:

• a first LED lighting load for emitting light with a first color temperature;
• a second LED lighting load for emitting light with a second color temperature;
• a diffuser, covering said first LED lighting load and said second LED lighting load to create a diffused light with a mingled color temperature;
• and
• a microcontroller based electronic switch electrically connected to said first LED lighting load and to said second LED lighting load, said microcontroller based electronic switch further comprising:
• a first switching element, electrically connected between said first LED lighting load and a power source;
• a second switching element, electrically connected between said second LED lighting load and said power source;
• at least a detection device, for detecting at least one external control signal and converting said at least one external control signal into at least one message carrying sensing signal;
• a microcontroller to receive and interpret said at least one message carrying sensing signal generated by said at least one detection device, wherein said microcontroller through a first control pin is electrically coupled to said first switching element, and through a second control pin is electrically coupled to said second switching element, wherein said microcontroller through a third control pin receives said at least one message carrying sensing signal from said at least one detection device, wherein said microcontroller controls a conduction state or a cutoff state of said first switching element through said first control pin and said microcontroller controls said conduction state or said cutoff state of said second switching element through said second control pin to control electric power transmission levels from said power source respectively to said first LED lighting load and to said second LED lighting load according to said at least one message carrying sensing signal generated by said at least one detection device;
• wherein said first color temperature is higher than said second color temperature;
• wherein said at least one message carrying sensing signal is characterized with a signal format of a short voltage signal, a long voltage signal, a plurality of short voltage signals, a plurality of long voltage signals or a combination of short voltage signal and long voltage signal generated in a preset time interval;
• wherein said short voltage signal and said long voltage signal are respectively defined either by a time length of a voltage signal or by said-time length of a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said at least one message carrying sensing signal, said microcontroller operates according to said signal format of said at least one message carrying sensing signal to perform at least one of various working modes including at least an on/off switch control mode, a dimming control mode, a color temperature tuning control mode, a color temperature switching mode, a dimming and color temperature tuning control mode, and a delay shutoff control mode;
• wherein when said first switching element and said second switching element are in said conduction state, said microcontroller further controls said electric power transmission levels from said power source respectively to said first LED lighting load and to said second LED lighting load according to said signal format of said at least one message carrying sensing signal received, wherein said microcontroller through said first control pin outputs a first control signal to change a conduction rate of said first switching element, said microcontroller through said second control pin outputs a second control signal to change said conduction rate of said second switching element;
• wherein said microcontroller is an integrated circuit programmable for generating said first control signal and said second control signal, or an application specific integrated circuit (ASIC) custom made for generating said first control signal and said second control signal.

A lighting apparatus comprising:

• a first LED lighting load for emitting light with a first color temperature;
• a second LED lighting load for emitting light with a second color temperature;
• a third LED lighting load for emitting light with a third color temperature;
• a diffuser, covering said first LED lighting load, said second LED lighting load and said third LED lighting load to create a diffused light with a mingled color temperature;
• a microcontroller based electronic switch electrically connected to said first LED lighting load, said second LED lighting load and said third LED lighting load, said microcontroller based electronic switch further comprising:
• a first controllable switching element, electrically connected between said first LED lighting load and a power source;
• a second controllable switching element, electrically connected between said second LED lighting load and the power source;
• a third controllable switching element, electrically connected between said third LED lighting load and the power source;
• at least one detection device, for detecting at least one external control signal and converting said at least one external control signal into at least one message carrying sensing signal;
• and
• a microcontroller to receive and interpret said at least one message carrying sensing signal generated by said at least one detection device, wherein said microcontroller through a first control pin is electrically coupled to said first controllable switching element, said microcontroller through a second control pin is electrically coupled to said second controllable switching element, and said microcontroller through a third control pin is electrically coupled to said third controllable switching element;
• wherein said microcontroller through a fourth control pin receives said at least one message carrying sensing signal from said at least one detection device, wherein said microcontroller controls a conduction state or a cutoff state of said first controllable switching element through said first control pin, said microcontroller controls said conduction state or said cutoff state of said second controllable switching element through said second control pin, and said microcontroller controls the said conduction state or said cutoff state of said third controllable switching element through said third control pin to control electric power transmission levels from said power source respectively to said first LED lighting load, to said second LED lighting load and to said third LED lighting load according to said at least one message carrying sensing signal generated by said at least one detection device;
• wherein said first color temperature is higher than said second color temperature and said second color temperature is higher than said third color temperature;
• wherein said at least one message carrying sensing signal is characterized with a signal format of a short voltage signal, a long voltage signal, a plurality of short voltage signals, a plurality of long signals or a combination of said short voltage signal and said long voltage signal generated in a preset time interval;
• wherein said short voltage signal and said long voltage signal are respectively defined either by a time length of a voltage signal or by said time length of a voltage signal comprising a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said at least one message carrying sensing signal, said microcontroller operates according to said signal format of said at least one message carrying sensing signal to perform at least one of various working modes including at least an on/off switch control mode, a dimming control mode, a color temperature tuning control mode, a dimming and color temperature tuning control mode and a delay shutoff control mode;
• wherein when said first controllable switching element, said second controllable switching element and said third controllable switching element are in said conduction state, said microcontroller further controls said electric power transmission levels from the power source respectively to said first LED lighting load, to said second LED lighting load and to said third LED lighting load according to said signal format of said at least one message carrying sensing signal received, wherein said microcontroller through said first control pin outputs a first control signal to change conduction rate of said first controllable switching element, said microcontroller through said second control pin outputs a second control signal to change conduction rate of said second controllable switching element and said microcontroller through said third control pin outputs a third control signal to change conduction rate of said third controllable switching element;
• wherein when said microcontroller receives said at least one message carrying sensing signal said signal format for performing said dimming and color temperature tuning control mode, said microcontroller manages to output different control signals to said first controllable switching element, to said second controllable switching element and to said third controllable switching element with an arrangement that said first LED lighting load leads said second LED lighting load and said second LED lighting load leads said third LED lighting load in reaching a turnoff state such that said mingled color temperature of said lighting apparatus continues to change to a warmer illumination along with a continuous reduction of light intensity according to said signal format of said at least one message carrying sensing signal, wherein during a cycle of said dimming and color temperature tuning control mode, a light intensity and said mingled color temperatures of the lighting apparatus are determined by said signal format of said at least one message carrying sensing signal received from said at least one detection device;
• wherein said microcontroller is an integrated circuit programmable for generating said first control signal, said second control signal and said third control signal, or an application specific integrated circuit (ASIC) custom made for generating said first control signal, said second control signal and said third control signal.

A method of creating a dim to warm effect for controlling lighting performance of an LED lamp comprising:

• using at least a first LED lighting load with a high color temperature and a second LED lighting load with a low color temperature to form a lighting unit of said LED lamp;
• electrically coupling a switching circuitry to said first LED lighting load and to said second LED lighting load to respectively deliver different average electric powers to said first LED lighting load and to said second LED lighting load for generating different illuminations respectively ;
• using a detection device to detect an external control signal and to convert said external control signal into a message carrying sensing signal with a time length;
• using a microcontroller to output at least one control signal to control a conduction rate of said switching circuitry electrically coupled to said first LED lighting load and to said second LED lighting load according to said time length of said message carrying sensing signal received from said detection device;
• and
• using a diffuser to cover at least said first LED lighting load with said high color temperature and said second LED lighting load with said low color temperature to create a diffused light with a mingled color temperature;
• wherein said switching circuitry comprises at least one semiconductor switching device;
• wherein when a dimming cycle is performed, said microcontroller receives said message carrying sensing signal and responsively outputs said at least one control signal to reduce conduction rate of said switching circuitry coupled to said first LED lighting load and to said second LED lighting load with an arrangement that said first LED lighting load with said high color temperature leads said second LED lighting load with said low color temperature in reaching a turnoff state during said dimming cycle such that said mingled color temperature of said LED lamp continues to change to a warmer illumination along with a continuous reduction of light intensity according to said time length of said message carrying sensing signal to create a dim to warm effect;
• wherein at any time during said dimming cycle a light intensity and said mingled color temperature of said lighting apparatus are determined by said time length of said message carrying sensing signal received from said detection device;
• wherein said microcontroller is an integrated circuit programmable for generating said at least one control signal, or an application specific integrated circuit (ASIC) custom made for generating said at least one control signal.

A lighting apparatus comprising:

• a first LED lighting load for emitting light with a first color temperature;
• a second LED lighting load for emitting light with a second color temperature;
• a diffuser, covering said first LED lighting load and said second LED lighting load to create a diffused light with a mingled color temperature;
• and
• a microcontroller based electronic switch, electrically coupled to said first LED lighting load and said second LED lighting load, wherein said microcontroller based electronic switch further comprising:
• a first controllable switching element, electrically coupled between said first LED lighting load and a power source;
• a second controllable switching element , electrically coupled between said second LED lighting load and the power source;
• a first detection device for detecting a first external control signal and converting said first external control signal into a first message carrying sensing signal;
• a second detection device for detecting a second external control signal and converting said second external control signal into a second message carrying sensing signal;
• and
• a microcontroller to receive and interpret said first message carrying sensing signal and said second message carrying sensing signal to respectively activate a corresponding process for controlling and setting a light intensity level and a mingled color temperature level of said lighting apparatus;
• wherein said microcontroller through a first control pin is electrically coupled to said first controllable switching element and through a second control pin is electrically coupled to said second controllable switching element, wherein said microcontroller through a third control pin receives said first message carrying sensing signal from said first detection device, wherein said microcontroller through a fourth control pin receives said second message carrying sensing signal from said second detection device;
• wherein said color temperature of said first LED lighting load is higher than said color temperature of said second LED lighting load;
• wherein said first message carrying sensing signal and said second message carrying sensing signal are characterized with a signal format of a short voltage signal, a long voltage signal or a plurality of short voltage signals generated in a preset time interval;
• wherein the short voltage signal and the long voltage signal are respectively defined either by a time length of a voltage signal or by the time length of a voltage signal comprising a series of pulse signals consecutively generated;
• wherein said first detection device is a first direct touch interface designed to detect said first external control signal and convert said first external control signal into said first message carrying sensing signal interpretable to said microcontroller for controlling and setting said mingled color temperature level of said lighting apparatus;
• wherein when said microcontroller receives said first message carrying sensing signal from said first detection device, said microcontroller manages to activate a first process to output a first control signal to reduce conduction rate of said first controllable switching element and meantime to output a second control signal to increase said conduction rate of said second controllable switching element, or vice versa, according to said signal format of said first message carrying sensing signal with an arrangement that a total power delivered to said first LED lighting load and said second LED lighting load remains unchanged;
• wherein said second detection device is a second direct touch interface designed to detect a second external control signal and convert said second external control signal into said second message carrying sensing signal interpretable to said microcontroller for controlling and setting said light intensity level of said lighting apparatus;
• wherein when said microcontroller receives said second message carrying sensing signal from said second detection device, said microcontroller manages further to determine a total power level transmitted to said first LED lighting load and said second LED lighting load according to said signal format of said second message carrying sensing signal with an arrangement that the ratio between the power delivered to said first LED lighting load and a power delivered to said second LED lighting load remains at a constant level;
• wherein said microcontroller outputs a third control signal to reduce conduction rate of said first controllable switching element and meantime to output a fourth control signal to reduce conduction rate of said second controllable switching element with the same pace, or vice versa, such that said mingled color temperature of said diffused light through said diffuser remains unchanged.

A lighting apparatus comprising:

• a first LED lighting load for emitting light with a first color temperature;
• a second LED lighting load for emitting light with a second color temperature;
• a diffuser, covering said first LED lighting load and said second LED lighting load to create a diffused light with a mingled color temperature;
• a clock, providing clock time information to be used for scheduling variation of color temperature of said lighting apparatus according to a programmed pattern of color temperature;
• and
• a microcontroller based electronic switch electrically connected to said first LED lighting load and said second LED lighting load;
• wherein said microcontroller based electronic switch further comprising:
• a first controllable switching element, electrically connected between said first LED lighting load and a power source for controlling a first electrical power level transmitted to said first LED lighting load;
• a second controllable switching element, electrically connected between said second LED lighting load and said power source for controlling a second electrical power level transmitted to said second LED lighting load;
• a detection device, for detecting an external control signal and converting said external control signal into a messaging carrying sensing signal;
• and
• a microcontroller to receive and interpret said message carrying sensing signal generated by said detection device, wherein said microcontroller is electrically connected between said first controllable switching element and said detection device, said microcontroller is also electrically connected between said second controllable switching element and said detection device, said microcontroller is designed to execute a task of managing illumination characteristics of said lighting apparatus including light intensity and mingled color temperature;
• wherein said microcontroller controls a conduction state, a cutoff state or conduction rates of said first controllable switching element and said second controllable switching element to control electric power transmission levels from said power source respectively to said first LED lighting load and said second LED lighting load according to a process designed for an automatic tuning of said mingled color temperature of said lighting apparatus based on said clock time information provided by said clock and according to a signal format of said message carrying sensing signal generated by said detection device;
• wherein said first color temperature is higher than said second color temperature;
• wherein said clock time information is either received from said clock electrically connected to said microcontroller or received from a mobile device configured with a clock time capacity through a wireless signal receiver electrically connected with said microcontroller;
• wherein said signal format is a short voltage signal, a long voltage signal or a plurality of voltage signals generated in a preset time interval;
• wherein said short voltage signal and said long voltage signal are respectively defined either by a time length of a voltage signal or by said time length of a voltage signal comprising a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said message carrying sensing signal, said microcontroller manages to activate a corresponding process according to said signal format of said message carrying sensing signal to perform one of various working modes including an on/off switch control mode, a dimming control model, a color temperature tuning control mode and a delay shutoff mode.

A lighting apparatus comprising:

• a first LED lighting load for emitting light with a first color temperature;
• a second LED lighting load for emitting light with a second color temperature;
• a diffuser, covering said first LED lighting load and said second LED lighting load to create a diffused light with a mingled color temperature;
• and
• a microcontroller based electronic switch electrically connected to said first LED lighting load and said second LED lighting load, comprising:
• a first controllable switching element, electrically connected between said first LED lighting load and a power source;
• a second controllable switching element, electrically connected between said second LED lighting load and said power source;
• a detection device, for detecting and converting an external control signal into a message carrying sensing signal;
• a wireless signal transmitter, for transmitting a coded wireless control signal converted from said message carrying sensing signal;
• and
• a microcontroller to receive and interpret said message carrying sensing signal generated by said detection device, wherein said microcontroller is electrically connected between said first controllable switching element and said detection device, said microcontroller is also electrically connected between said second controllable switching element and said detection device, said microcontroller is also electrically coupled to said wireless signal transmitter for controlling a lighting performance of at least a second lighting apparatus located in a different location;
• wherein said microcontroller controls a conduction state, a cutoff state or conduction rates of said first controllable switching element and said second controllable switching element to control electric power transmission levels from said power source respectively to said first LED lighting load and said second LED lighting load according to said message carrying sensing signal generated by said detection device;
• wherein said first color temperature is higher than said second color temperature;
• wherein said detection device is a wireless remote control device electrically coupled to a pin of said microcontroller to receive and convert a wireless external control signal into said message carrying sensing with a signal format interpretable to said microcontroller, wherein said signal format of said message carrying sensing signal is a voltage signal with a short time length, a voltage signal with a long time length or a plurality of voltage signals generated in a preset time interval;
• wherein the short voltage signal and the long voltage signal are respectively defined either by a time length of a voltage signal or by the time length of a voltage signal comprising a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said message carrying sensing signal, said microcontroller manages to activate a corresponding process according to said signal format of said message carrying sensing signal to perform at least one of various working modes including at least an on/off switch control mode, a dimming control mode for selecting light intensity, a color temperature tuning mode for selecting light color, a color temperature switching mode and a delay timer control mode for managing delay shutoff before switching off the light.

A lighting apparatus comprising;

• a first LED lighting load for emitting light with a first color temperature;
• a second LED lighting load for emitting light with a second color temperature;
• a diffuser, covering said first lighting load and said second lighting load to create a diffused light with a mingled color temperature;
• and
• a microcontroller based electronic switch electrically connected to said first LED lighting load and said second LED lighting load, comprising:
• a first controllable switching element, electrically connected between said first LED lighting load and a power source;
• a second controllable switching element, electrically connected between said second LED lighting load and said power source;
• a detection device, for detecting an external control signal and converting said external control signal into a message carrying sensing signal;
• and
• a microcontroller to receive and interpret said message carrying sensing signal generated by said detection device, wherein said microcontroller is electrically connected between said first controllable switching element and said detection device, said microcontroller is electrically connected between said second controllable switching element and said detection device, said microcontroller controls a conduction state, a cutoff state or conduction rates of said first controllable switching element and said second controllable switching element to control electric power transmission levels from said power source respectively to said first LED lighting load with said first color temperature and said second LED lighting load with said second color temperature according to said message carrying sensing signal generated by said detection device;
• wherein said first color temperature is higher than said second color temperature;
• wherein said detection device is a detection circuit electrically coupled with said microcontroller to detect a signal of a short power interruption and convert said short power interruption signal into said message carrying sensing signal interpretable to said microcontroller, wherein when said microcontroller receives said message carrying sensing signal to perform a color temperature switching control mode, said microcontroller operates to change conduction rates of said first controllable switching element and said second controllable switching element according to paired combinations of conduction rates between said first controllable switching element and said second controllable switching element to alternately perform a different mingled color temperature, wherein the total conduction rate of said first controllable switching element and said second controllable switching element is managed at a constant level.

A microcontroller based electronic switch for controlling a lighting performance of an LED lamp configured with a plurality of LED lighting loads comprising

• a first controllable switching element, electrically connected between a first LED lighting load for emitting light with a first color temperature and a power source;
• a second controllable switching element, electrically connected between a second LED lighting load for emitting light with a second color temperature and said power source;
• a first detection device for detecting a first external control signal and converting said first external control signal into a first message carrying sensing signal;
• a second detection device for detecting a second external control signal and converting said second external control signal into a second message carrying sensing signal;
• and
• a microcontroller through a first control pin receives said first message carrying sensing signal generated by said first detection device, said microcontroller through a second control pin receives said second message carrying sensing signal generated by said second detection device, wherein said microcontroller through a third control pin is electrically coupled to said first controllable switching element, wherein said microcontroller through a fourth control pin is electrically coupled to said second controllable switching element;
• wherein said first color temperature is higher than said second color temperature;
• wherein said first detection device and said second detection device are direct touch interface;
• wherein when said first controllable switching element and said second controllable switching element are in conduction state, said microcontroller further controls electric power transmission levels from said power source respectively to said first LED lighting load and to said second LED lighting load according to said first message carrying sensing signal or said second message carrying sensing signal received, wherein said microcontroller through said third control pin outputs a first control signal to control conduction rate of said first controllable switching element, said microcontroller through said fourth control pin outputs a second control signal to control conduction rate of said second controllable switching element;
• wherein said first message carrying sensing signal and said second message carrying sensing signal are characterized with a signal format with a time length, wherein said time length of said signal format is defined either by a time duration of a voltage signal or by said time duration of a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said first message carrying sensing signal, said microcontroller manages to activate a first process to control a light intensity of a diffused light through a light diffuser covering said first LED lighting load and said second LED lighting load according to said time length of said first message carrying sensing signal, wherein when said microcontroller receives said second message carrying sensing signal, said microcontroller manages to activate a second process to reversely control said light intensity of said diffused light through said light diffuser according to said time length of said second message carrying sensing signal, wherein said first process and said second process are designed to operate a reverse function to each other for adjusting said light intensity of said LED lamp;
• wherein said first process operates to increase and set said light intensity of said
• LED lamp by proportionately increasing conduction rates of said first controllable switching element and said second controllable switching element according to said time length of said first message carrying sensing signal, wherein said second process operates to decrease and set said light intensity of said LED lamp by proportionately decreasing conduction rates of said first controllable switching element and said second controllable switching element according to said time length of said second message carrying sensing signal;
• wherein said microcontroller is an integrated circuit programmable for generating said first control signal and said second control signal, or an application specific integrated circuit (ASIC) custom made for generating said first control signal and said second control signal.

A microcontroller based electronic switch for controlling a lighting performance of an LED lamp configured with a plurality of LED lighting loads comprising

• a first controllable switching element, electrically connected between a first LED lighting load for emitting light with a first color temperature and a power source;
• a second controllable switching element, electrically connected between a second LED lighting load for emitting light with a second color temperature and said power source;
• a first detection device for detecting a first external control signal and converting said first external control signal into a first message carrying sensing signal;
• a second detection device for detecting a second external control signal and converting said second external control signal into a second message carrying sensing signal;
• and
• a microcontroller through a first control pin receives said first message carrying sensing signal generated by said first detection device, said microcontroller through a second control pin receives said second message carrying sensing signal generated by said second detection device, wherein said microcontroller through a third control pin is electrically coupled to said first controllable switching element, wherein said microcontroller through a fourth control pin is electrically coupled to said second controllable switching element;
• wherein said first color temperature is higher than said second color temperature;
• wherein said first detection device and said second detection device are direct touch interfaces;
• wherein when said first controllable switching element and said second controllable switching element are in conduction state, said microcontroller further controls electric power transmission levels from said power source respectively to said first LED lighting load and to said second LED lighting load according to said first message carrying sensing signal or said second message carrying sensing signal received, wherein said microcontroller through said third control pin outputs a first control signal to control conduction rate of said first controllable switching element, said microcontroller through said fourth control pin outputs a second control signal to control conduction rate of said second controllable switching element;
• wherein said first message carrying sensing signal and said second message carrying sensing signal are characterized with a signal format with a time length, wherein said time length of said signal format is defined either by a time duration of a voltage signal or by said time duration of a series of pulse signals consecutively generated;
• wherein when said microcontroller receives said first message carrying sensing signal, said microcontroller manages to activate a first process to control a light color temperature of a diffused light through a light diffuser covering said first LED lighting load and said second LED lighting load of said LED lamp according to said time length of said first message carrying sensing signal, wherein when said microcontroller receives said second message carrying sensing signal, said microcontroller manages to activate a second process to reversely control said light color temperature of said diffused light through said light diffuser according to said time length of said second message carrying sensing signal, wherein said first process and said second process are designed to operate a reverse function to each other for adjusting said light color temperature of said diffused light through said light diffuser of the LED lamp;
• wherein said first process operates to decrease conduction rate of said first controllable switching element and at the same time to increase conduction rate of said second controllable switching element with an arrangement that the total electric power transmitted to said first LED lighting load and said second LED lighting load is maintained at a constant level for decreasing and setting said light color temperature of said LED lamp according to said time length of said first message carrying sensing signal, wherein said second process operates to increase conduction rate of said first controllable switching element and at the same time to decrease conduction rate of said second controllable switching element with said arrangement that the total electric power transmitted to said first LED lighting load and said second LED lighting load is maintained at the constant level for increasing and setting said light color temperature of said LED lamp.