... energy saving 80% 4.2 years warranty 12W High power LED Ceiling Light 1.easy install 2.high brightness 3 ... ( Al back board , Al-border ; high quality Light Guide Plate)Construction dimensions600x1200x12mmLife Span >50,000hrs2012 NEW model, ... design. white surface.Watts available: 5W,7W,9W,12W,15W,18W,21W,24W.Fin heatsink, Very good ... lifetime. 3 Years Warranty, CE, RoHS. 12W High power LED Ceiling Light