... 40 Useful life: 50000-80000hours Power effciency:80% Advantage:1. High Power LED makes high brightness, low power consumption2 ... our speciallydeveloped technology make better luminance and energy saving.3. The exclusivelypatented thermal structural design for maximal, ... heat dissipation.6. Free from harmful UV, radiation and IR emissions, toxic materialsApplications:Study room, dining room Office, ...