... 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 ... environment lighting.3. Hi-tech, the third generation lighting source.4. No any heavy metals in ...