Welcome to Royoled Photoelectric Technology website, we are one of the top level China 3w led mr16 manufacturers. Chip Source: LED Bridgelux Input Voltage: DC12V E27/GU10 for you choose Luminous: .225---255lm Power: 3W. CRI (Ra)>80 Lifespan(H)>50000hrs Net weight (kg): 0.1kg Dimmension: 49*50mm Use Bridgelux LED chip, Pass LM-80, less than 2% light decay after illuminated 6000 hours. Beam angle 15°-60°. Very high lumen and high CRI. Compatible with traditional transformator. Reflector and lens available. http://www.royolight.com