led ceiling lamp 1.28w, 600x600mm, 50,000hrs 2.90lm/w, flux ... AC 85~265V/50~60HZ 4.3200~8000K, CE&RoHS led ceiling lamp 1.28w, 600x600mm, 50,000hrs2.90lm/w, flux>5320lm, ... or by Air.6 Within 1week for the quantity below 100pcs, within a month for the quantity > 5,000pcs.7 ... -160DegreeCover MaterialAl & PC ( Al back board , Al-border ; high quality Light Guide Plate)Life Span>50,000HrsOEM/ODMOther power ...