The Princeton Tec AMP 1L Flashlight w/ Bottle Opener is a little flashlight with big output. This palm-sized light gives you 45 lumens of light in a pocket-sized package. The Princeton Tec AMP 1L LED Flashlight has an integral carabiner loop that lets you attach it to your gear or backpack, tent or purse with ease. The AMP 1L also makes a great backup diving flashlight, as it's fully waterproof to 100 meters depth (that's over 300 feet!) You can also find plenty of work for the Princeton Tec AMP 1L Waterproof Flashlight after hours, too - the built-in bottle opener makes it a great companion around the campfire.