... EMC cree led track light SpecificBrand namePASSUNWatt5*3wMinimum lighting distance0.5 meterInput Voltage AC100-240VLED Manufacture CreeOperating Temperature -20-90 ... Temperature Warm white 2,600-3,700KNeutral White 3,700-5,000KCool White 5,000-10,000K Light Type cree led track ... different kinds of lamp and, colors ,watts for choosing.5)Warm White, Neutral White, Cool White6)Long lifespan over 50000h ...