Replaces Milwaukee M12, M18, V28, and most other branded 9.6V to 28V incandescent or standard bulbs. The replacement LED (light emitting diode) bulb works in most power tool work lights and delivers over 3 times the runtime of traditional light bulbs. The 50,000 hour bulb life in the LED allows it to last over 250 times longer than 18V incandescent bulbs. Impact-resistant - solid state light elements does not fail when dropped. Limited lifetime warranty.