★Features: High CRI:Over 80. High light transmittance: Over 80% Long lifespan: Over 50,000 hours, reduce the hassle of frequently replacing your light bulbs in high ceiling. Environment-friendly: No mercury and no UV and IR radiation, they will not fade fabrics or furnishing. Intelligent Constant Current Drive: The power supply of all of our ceiling lights are use high-quality constant current isolation drive, keep you away from flicker. ★How to choose the light color? 3000K: Warm white, Used in family, hotels, coffee shops and other warm and sweet environment required. 6000K: Cool white, Used in office, working area, shopping mall and other commercial area or someplace where need super bright. 【Lumen】 - 【Dimention】 - 【Weight】 20W: 2000lm - 30 * 5mm - 0.85Kg 28W: 2800lm - 40 * 43mm - 1.4Kg 36W: 3600lm - 50 * 5mm - 1.9Kg 48W: 4800lm -60 * 5mm - 2.8Kg ★Specifications: Product Name: 20w/28w/36w/48w Led Ceiling Lights Material: PC Input voltage: AC85-265V Color Temperature:6000(Cool White),3000k(Warm White) CRI(RA>): 80 Power Factor: >0.95 Beam Angle : 120° Body Color: White Lifespan: >50000 hours Warranty: 2 years Energy Efficiency Rating:A+ Power Source:Electric/Corded Waterproof Rating:IP20 ★Installation: 1.tighten the screws 2.connection lampshade and lamp holder 3.lamp cover and card holder closed 4.connect the 110v power. ★widely used in the living room kitchen hotel club conference rooms closet garage aisle hallway driveway laundry room storeroom and other places.　 ★Package Includes: 1 x LED Panel Ceiling Light 1 x Instructions ★Warm tips！ Shipping from the US warehouse,about a week.