Nite Ize Flashlight Accessories help you store, hang, shine, clip, fasten, hold and use your flashlight in ways you would never think possible. Our goal was to create a line of products that expand the usability and functionality of the flashlights we depend on every day. Extends battery life up to 20 hours - Lasts four times longer than with an incandescent bulb! Features three bright white L.E.D.s Brilliant quality white light vs. yellow hue of an incandescent bulb 10 Year lamp life - 100,000 hours of continuous use Shock proof Save money on bulbs and batteries