If you're looking for a top-notch LED flashlight, this is the one. The Streamlight Strion LED flashlight is ultra-compact, and it runs on a lithium-ion battery. New C4 technology gives you three brightness modes, plus a wild strobe. In high mode, the Strion gives you 160 lumens and runs for up to 2 hours on a single charge—and it's only 6" long, weighing in at a spry 5.2 ounces.
• C4 LED technology that is impervious to shock
• 50,000 hour lifetime
• Brightness and run times:
- high: 160 lumens, up to 2 hours
- medium: 80 lumens, up to 4 hours
- low: 40 lumens, up to 7.5 hours
- strobe: runs for up to 5.5 hours
• Battery charges while inside the flashlight; takes a full charge in 2.5 hours
• Compatible with any Strion charger
• Charges via 12v, or 110V wall charger
• Crafted from 6000 series machined aircraft aluminum with anodized finish
• Water resistant
• Made in the USA
• Limited lifetime warranty through Streamlight
It's a good product.