Lighting system with color temperature adjustment function

A lighting system with color temperature adjustment function, comprising:

• a lighting device, comprising a color temperature control module, a wireless signal receiving module and a plurality of light sources having different color temperatures;
• a mobile temperature signal transmitting device, comprising a wireless signal transmitting module, a temperature detecting module and a signal converting module;
• and
• a signal processing module;
• wherein the temperature detecting module is configured to detect an environmental temperature to obtain a temperature signal, and the signal converting module is configured to convert the temperature signal into a digital signal and transmit the digital signal to the wireless signal receiving module via the wireless signal transmitting module, wherein the signal processing module is configured to convert the digital signal into a control signal, whereby the color temperature control module controls the light sources according to the control signal in order to adjust the color temperature of the lighting device, wherein the control signal is a pulse-width modulation signal.