This tiny LED flashlight from Streamlight is super bright, tough, and remarkably handy. Its so compact, you can carry it with you at all times. And its very powerful. It offers 400 more lighting range than a penlight, and reflector optics that enhance the brightness of the LED lighting two to three times the range of other keychain lights without optics. The tiny, durable, powerful Key-Mate is ideal for work, auto, and home.brbrStreamlight flashlights are legendary for their dependability, and the Key-Mate is no exception. Its high-intensity, state-of-the-art LED lasts 100,000-hours, and the anodized, machined aircraft aluminum casing is virtually indestructible. Its high-capacity alkaline button cells allow it to run longer-and stay brighter-than any button cell keychain LED light. Run time up to 96 hours.brbrThe Key-Mate also offers many extras that set it apart from other lightsbrbr- Versatile powder-coated spring steel pocket clip br- Weatherproof - O-ring sealed br- Rotary head switch. Little chance youll accidentally turn it on. brbrPlus, the Key-Mate is a convenient tool. Snap the breakaway lanyard around your neck or wrist. Use the snap hook with swivel for quick attachmentdetachment from your belt loops, backpack, zipper pull, or key ring. And its powder-coated spring steel pocket clip lets you clip it to just about anything.brbr- Super-bright 100,000-hour LED br- Virtually unbreakable machined aircraft aluminum br- Runs longer and stays brighter than any other button cell powered keychain LED light with focusing optics br- Runtime up to 96 hours br- Virtually unbreakable machined aircraft aluminum br- State-of-the-art, super bright 100,000-hour LED with focusing optics.brbrSpecifications br- Battery LR44, SR44, L1154, 357, 303, A76, or LR1154 br- Bulb 100,000-hour high- intensity Light-Emitting Diodes LEDs with reflector optics. - Material Anodized, machined aircraft aluminum 6000 series. br- Color Blackbr- Weight with batteries .9 ouncesbr- Dimensions Head D .728, Body D .560, Length 2.36 br- Run Time Up to 96 hours br- Special Features Reflector optics Waterproof Rotary head switch Breakaway lanyard Snap hook with swivel Pocket clip brbrWhich LED is right for youbr- White. Most popular for all-around use. Very close to natural light, which allows you to see true color.br- Green. Extremely bright. Great for outdoors because it preserves night vision. For hunters it wont spook game. br- Blue. Extremely bright yet easy on the eyes. Ideal for various industrial and automotive applications. Also commonly used in forensics.