... Warm white4500-5500 White5500-6500 Cold whiteWorking TEMP°C -20~+50Storage TEMP°C -20~+80Certificate RoHS /CE/ETL/CCCLifespanHour30000H Feature:1.Energy saving : energy saving ... to the light.6.High illuminating efficiency, >80LM/W,Ra>707.High quality LED, low attenuation,10000H <5%8.Colorful: White, warm white, red, green, blue ...