3W LED Ceiling Light, High Brightness, New Design, Easy for installation, 3 Yars Guarantee Features:1.High power ... time 2.PF>0.92, compatible with UL standards 3. Fin-design aluminum ,Special heat sink design, low working temperature 4. NO radiation, no ... . Conference, meeting room, show room, showcase; 4. Commercial complexes; 5. Factory, plant, warehouse, office; 6. Supermarket, department store.