... 3,Life span :50000h 4,Main market : Europe 5,Application :indoor Specifications1.500*300mm,85-265v input voltage 2.SMD 3528 ... .5.Energy saving. Saving upto 50%.6.Environmentally friendly.7.Indoor use only. Instructions1.Make sure the power supply is adapted ... in home, hotel, hospital, mall, office, classroom and conference rooms (ceiling recessed, pendant, ceiling mounted, wall mounted and so on).