Lemonbest Bright 18 Watt Dimmable LED Panel Light Square Ceiling Downlight Lamp Recessed Lighting Fixture Kit Pure White saving energy; outer size: 8.9inches/ 225*225*15mm (L*W*H); Open hole: D 199mm/7.8inches Input Voltage: AC 100V-245V; Cool White(6300k-7000k); 100,000 hours lifespan 90pcs super bright SMD3528 Led; well-controlled beam angle; low power consumption Safe and easy to install, no warm up time required, no noise and no flickering, no IR and UV radiation Factory direct sales; 48 hours aging time, 5 steps strict quality control; Lemonbest high quality standard