... 70%, *High brightness, Epistar Chip *2 years warranty3W LED Track Light with Ce & RoHSSpecification: Item NameUSU-KL03 VoltageAC110/220V ... theater, museum lightingApply to homes, shopping centers, display counters lighting and decorationSupermarket, restaurant, city bright project,etc. Features: ... ~30years of life(6 hours per day)Unique optical design, no light pollution, glare-free, uniform light field ...