The Nite Ize ClipLit LED is a bright, water-resistant light encased in durable, plastic housing. Because it's molded to a rugged plastic carabiner clip, the ClipLit is easy and convenient to attach to and remove from just about anything. Clip it onto your key ring, belt loop, zipper pull, backpack or purse, and you'll have bright illumination wherever you go, whenever you want. Powered by a long-lasting, fully replaceable lithium battery, the ClipLit is easy to activate with a simple twist. It's perfect for everything from reading fine print to finding your car door keyhole. Plus, when you attach it to your clothing, the ClipLit is an excellent device for telling people where YOU are in the dark, increasing safety and visibility at the same time.