1x4 20/30/35 Watt Backlit LED Dual Selectable Flat Panel 3500/4000/5000KThe SYLVANIA Ultra LED Back Lit Flat Panels are environmentally preferable LED alternatives to traditional fluorescent luminaires, offering up to 68% in energy savings. Ideal in place of fluorescent troffer lighting fixtures, or as new installations, the Back Lit Panels are offered in three sizes and are designed to lay in drop ceilings in offices, schools, and healthcare applications. The slim design of these LED fixtures is beneficial for