Lighting device and lighting system comprising the lighting device

A method comprising:

• operating a light emitting diode (LED) light source such that:
• at least one LED element of the LED light source is inactive;
• and
• at least two other LED elements of the LED light source have a monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• wherein the at least one LED element which is inactive and the at least two other LED elements each differ from one another in correlated color temperature;
• and
• wherein the at least one LED element which is inactive has a maximum luminous flux which is:
• greater than a maximum luminous flux of at least one of the at least two other LED elements having the monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• and
• less than a maximum luminous flux of at least one of the at least two other LED elements having the monotonic increase in color temperature or correlated color temperature with increasing luminous flux.

A method comprising:

• operating a light emitting diode (LED) light source such that:
• at least one LED element of the LED light source is inactive;
• and
• at least two other LED elements of the LED light source have a monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• and
• driving at least one of the at least two other LED elements having the monotonic increase in color temperature or correlated color temperature with increasing luminous flux based on a feedback signal from at least one other of the at least two other LED elements having the monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• wherein the at least one LED element which is inactive and the at least two other LED elements each differ from one another in correlated color temperature.

A method comprising:

• operating a light emitting diode (LED) light source such that:
• at least one LED element of the LED light source is inactive;
• and
• at least two other LED elements of the LED light source have a monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• and
• controlling the LED light source based on at least one of:
• a detected daylight level;
• and
• a detected motion;
• wherein the at least one LED element which is inactive and the at least two other LED elements each differ from one another in correlated color temperature.

A method comprising:

• operating a light emitting diode (LED) light source such that:
• at least one LED element of the LED light source is inactive;
• and
• at least two other LED elements of the LED light source have a monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• wherein the at least one LED element which is inactive and the at least two other LED elements each differ from one another in correlated color temperature;
• and
• wherein the LED light source is a constituent component of an LED lamp.

A method comprising:

• operating a light emitting diode (LED) light source such that:
• at least one LED element of the LED light source is inactive;
• and
• at least two other LED elements of the LED light source have a monotonic increase in color temperature or correlated color temperature with increasing luminous flux;
• wherein the at least one LED element which is inactive and the at least two other LED elements each differ from one another in correlated color temperature;
• and
• wherein the LED light source is a constituent component of a luminaire.