... life time,50000hours, for hotel,meetroom,etc LED Spotlight,led lamp,led bulb, led light is a new generation light sources. It has good illumination effect ... efficiency can reach 90% , it is very good comparing tradional light . Meantime it can save 80% energy consumption Ø Full range ... of colors: cool white (5000-5500K), warm white (3000-3,500K),blue, green, red, yellow are avaliableØ Long life ...