How fast , simple and effective to buy LED products meet their needs , roughly following two indicators can be.
First, power and integrated optical efficiency . Integrated optical efficiency of LED lights is the luminous efficiency of a product LED lamp unit is lumens / watt. The higher the number the better the results indicate that the energy-saving lamps , the more power, should choose lumens / watt high LED lamps. Depending on the size of the environment to choose the right power LED lamps , the current LED lamps on the market , the size of the 16 -watt power LED lamps can achieve the equivalent of 200 -watt incandescent light flux , sufficient to meet the lighting requirements of 10 square meters of space .
Second, CRI and color temperature. CRI is an indicator light on the evaluation object color capability , perfect color rendering index reference light source 100 , the higher the color rendering index , indicating the color of the light source closer reaction to the true color of the object . Generally considered: 80 to 100 , the color is excellent ; 50 to 79 , the color in general ; less than 50 is considered poor color rendering. Color temperature is measured in Kelvin (K), color temperature of the light source between red 800K ~ 900K, yellow-white light color temperature of about 3,000 K, white light color temperature of about 5500K, the color temperature of the light blue light between 8,000 K ~ 12,000 K. CCT choose according to personal preference , for example, some people like warm lighting, then he can choose the color temperature of about 3,000 K lamps .
