This High Powered 13 Watt Dimmable Performance LED with a GU24 base. It has an average life of 25,000 hours. It is also RoHS Compliant and mercury free. Dimmable Performance LED Bulbs use ocular lenses to harness the output of high power LEDs. The light output is comparable to incandescent and halogen products. This true replacement performance can be used for both distance and close-range directional light.