1.LED ceiling lamp 2.Energy saving 3.Thermal release design for lamp cup 4.Lifespan:50000hours+ 5.Certificates:CE,ROHS& ... . 5,Long lifespan , low cost of maintenance. 6,Energy efficient and environmental friendly. 7,Anti-shake, convenient for transportation. 8 ... Hotel,Conference&Meeting room,institution building 2.theatre, stage and museum lighting, etc. Replacement for halogen lamps,incandescent bulbs ...