LED light source how to choose


 LED light color what kind of have. Now LED, slight cha […]

 LED light color what kind of have. Now LED, slight changes in drive current, power immediately changed! Are you still asking for power? Unified LED light source, with excessive current to drive, the power is up, but will result in decreased luminous efficiency, light failure increases. In this case, the designer should directly request the luminous flux, as to what wattage should be decided by the manufacturers themselves. With the voice of energy saving more and more strong, we use more and more LED lighting in lighting design. We often say: "How many watts of lamp do I need". This habit is a continuation of the traditional light source of the past. At that time, the light source only had a few fixed wattages and was basically only selected among those wattages and could not be freely adjusted. Light color era of traditional light sources, when it comes to color temperature, we only care about "yellow, white," not concerned about the color deviation. Light source parameters are: current, power, flux, light failure, light color, color. Also known as "chroma".
A good LED light source, the drive current should use the maximum rated current of about 70%. Facts have proved that the human eye appears completely different two light sources, "related color temperature" only a difference of 20K. LED market can be described as quite a mixed bag, good and bad, the manufacturers and businesses are pushing, trying to blow their own products. Instead of blindly pushing up the wattage of the light source, you can sacrifice efficiency and life expectancy by encouraging manufacturers to pursue efficiency and turmoil.
Color temperature: When the color of the light source is the same as that of a black body at a certain temperature, the absolute temperature of the black body is the color temperature of the light source. LED lighting options include the appearance of heat, light, glare, installation and so on. Is it wrong "color temperature deviation within ± 150K, the human eye is difficult to detect" This conclusion is wrong? Moji, listen to me slowly explain: First talk about the color temperature vs color temperature of these two concepts. Unit is on; Related color temperature: When the light source of the color point is not on the blackbody locus, and the light source of color products and a temperature of the black body closest to the chromaticity, the absolute temperature of the black body for the light source related color temperature, referred to as Related color temperature.


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