Ledwholesalers Edge Lit LED Panel Light Ul Listed, DLC and Energy Star, 1x4 Ft. 58 Watt White 5000k, 2108wh Super bright by edge-lighting with high quality light-guide plate, glare-free Ultra-slim and low-profile -- thickness of panel is less than 1/2" UL listed Suitable for damp locations Exceeds DLC (Design Lights Consortium) standards, LM79 qualified