This Feit Electric 35-watt equivalent traditional glass MR16 flood LED light bulb has a GU10 base. Featuring bright white 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. This MR16 reflector produces a similar light output while using less energy than a standard 35-watt incandescent light bulb. The dimmable light has an average life of 25,000 hours/22.8 years and is safe for indoor or outside use. Choose a dependable high quality 120 volt MR16 bulb for residential or commercial applications.