The Tag Light is an extremely small flashlight utilizing a bright white light producing LED. Bright for its size, one can easily find the way around in darkness. Handy for camping and all types of outdoor and indoor activity . Easily attaches to zippers on jackets, backpacks, cellular phone straps, keys and more. Two way switch provides intermittent or continuous use. Tag Light will operate for 15 hours in continuous use. The LED in the Tag Light has a life of 100,000 hours. Lithium cells can provide operation in extreme temperatures of -20C to -60C. Batteries can be easily replaced with the use of tools.