GR-PL6060-D series is our hot sale led panel light with back-lit LED technology and specialized optics to create beautiful, high-quality products. It is the main item and most competitive flat ceiling light in markets. Top-quality but reasonable price. Available 40W 48W 60W in wattages. It is the best choice to do commercial lighting projects such as offices, meeting rooms, supermarkets, and schools, hospitals. For more information about led backlight panel visit https://grnled.com/best-led-panel-light-manufacturer-in-china/backlit-led-light-panel-600x600