3KINGS 18w New Square, Cool White 6000-6500k 1310LM Super Bright Ultra-thin LED Panel Lamp Ceiling Lamps Recessed Light with Led Driver, the hole size: 8.1 inch x 8.1 inch, AC 85-265V Outer size: 8.7*8.7*1 inch (L*W*H); Open hole: 8.1*8.1 inch (L*W) Input Voltage: AC85-265V, 50000 hours lifespan, Safety certification: CE RoHS World-class ODM Factory products,Same Production standards and product quality control process as Osram,Panasonic,GE,SIEMENS,SHARP etc,2 year warranty, free replacement within warranty,30 days return without reasons. Safe and easy to install, no warm up time required, no noise and no flickering, no IR and UV radiation Energy saving and Use for a long time:Brightness Degradation Is Less Than 0.1% per 1000 hours.The minimum service life is up to 50000hours Generally used for more than 10 years which means 90% saving on the electricity bills,Anodic oxidation corrosion proof,greatly reducing maintenance cost.