... available CE,ROHS,etc.approved 50000h life,2yr warranty Downlight ceiling led light Features:1.Save more than 50%-70% energy, ... constant current LED driver.3.Working Temperature: -10°C~ +40°C.4.Application: Hotel, Super marketing, commercial and Residential lighting, etc ... , Production Line, Warehouse,Subway station, bus and train, Pathway lighting, Street lighting Downlight ceiling led light