This Feit Electric 35-watt equivalent traditional glass MR16 flood LED light bulb has a GU5.3 base. Featuring bright white light and high 90 CRI (color rendering index) rating this Enhance LED is our highest quality energy efficient light with bolder color rendering and enhanced contrast, so people and objects appear more realistic and vibrant. The dimmable lights have an average life of 3,000 hours. Choose a dependable high-quality 12-volt MR16 bulb for residential or commercial applications.