Klein Tools X35 Recoil LED Heavy Duty Flashlight Bright, powerful 1-watt Luxeon Lambertion LED utilizes Recoil LED Technology and provides 10,000 hours of lamp life 50 hours of battery life so you won't be left in the dark Spring loaded belt clip securely attaches to belts up to 2-Inch Recoil LED Technology focuses 100-Percent of the light forward to produce a white collimated beam that's as bright as an incandescent light 3 C Alkaline (batteries NOT included)