The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source. Color temperature is a characteristic of visible light that has important applications in lighting, photography, videography, publishing, manufacturing, astrophysics, horticulture, and other fields. In practice, color temperature is meaningful only for light sources that do in fact correspond somewhat closely to the radiation of some black body, i.e., light in a range going from red to orange to yellow to white to blueish white; it does not make sense to speak of the color temperature of, e.g., a green or a purple light. Color temperature is conventionally expressed in kelvins, using the symbol K, a unit of measure for absolute temperature.

Color temperatures over 5000 K are called "cool colors" (bluish), while lower color temperatures (2700–3000 K) are called "warm colors" (yellowish). "Warm" in this context is an analogy to radiated heat flux of traditional incandescent lighting rather than temperature. The spectral peak of warm-colored light is closer to infrared, and most natural warm-colored light sources emit significant infrared radiation. The fact that "warm" lighting in this sense actually has a "cooler" color temperature often leads to confusion.^[1]

High Density LED strip - 2216 2835 3528 5050 led strip RGB RGBW RGBWW SK6812 WS2811 APA102

LED strip 2835 900led/m 24V LED strip

Item No.: BLL-FP40AEIDJ-900AXXK Power consumption: 72Watt/M Input Voltage: 24V DC CE ROHS UL cUL 5 years quality waranty

LED strip 2835 420led/m 24V LED strip

Item No.: BLL-FP30ACIDJ-420AXXK Power consumption: 86.4Watt/M Input Voltage: 24V DC CE ROHS UL cUL 5 years quality waranty

3014 LED strip 196led/m

Item No.: BLL-FP8AFXDJ-196AXXK Power consumption: 20Watt/M Input Voltage: 24V DC CE ROHS UL cUL 5 years quality waranty