Welcome to Royoled Photoelectric Technology website, we are one of the top level China 15w led cob downlight manufacturers. Model NO.: RY-D740-9015 Input Voltage: AC85-265V Chip Source: COB LED (Bridgelux) Size: 110*100mm Cut Size: 90mm Beam angle: 37° Luminous Efficiency: 80 lm/W Warranty: 3 Years IP Rating: IP44 Advantage By using the COB lamp bead, this product is of high lights performance. Without any shadow stack or dark circle. The whole lighting is bright. Use Bridgelux LED chip, Pass LM-80, less than 2% light decay after illuminated for 6000 hours. Constant current IC Driver with wide input voltage 85-265V AC Dimmable, Compatible with leading edge and trailing edge dimmer http://www.royolight.com