led ceiling light 1 epistar chip 2 PMMA lens 3constant current LED ceiling ... factor ≥0.8LifespanOver 50,000 hoursCertificationCE, RoHSWarranty3 Years LED ceiling light applicationsFactories, gyms, docks, billboards, buildings, lawns, gardening design, tunnels ... and decorative lighting places for illumination.LED ceiling light advantage 1. Low power, high lumen, super energy- saving, ...