Designed for compact, high-power spot illumination, the Streamlight ProTac 2AA Professional Tactical light emits a piercing 250-lumen beam that easily can light up a room or alley. Featuring C4 LED technology for maximum illumination and Solid State power regulation for optimal runtimes, this small flashlight is much stronger than its size may suggest. Weighing in at just under 3.5 ounces, it utilizes the innovative Streamlight Ten-Tap Programmable Switch, which lets users rapidly select beam output levels with a few clicks. This model has a high-power 250 setting as well as a steady 18-lumen beam that can run for up to 36 hours on a single battery. The tempered glass lens is impact resistant and will not roll when set down. Its small size and compact design make this an ideal personal carry light, and the unbreakable pocket clip makes carrying it and stowing it convenient.