... Light(HS-TD12-4'') 1.led downlight 12*1w 2.CE,RoHs certification 3.Lifespan:50000h ... .Commercial complex5.Factory/office6.Supermarket7.Rsidential/insititution buildings8.Bus,shuttle,railcar passenger interiors9.Uninterrupted emergency lighting10.Focused ... Meeting RoomCommercial Building, Hotel, RestaurantOffice,TowerSubway station, bus and train stationCaution 1) Please read the specification first ...