Rosewill RFL-101 150 Lumens - 3W LED Aluminum Flashlight w/Bicycle Bracket High-strength aluminum body Durable 3 Watt LED maximizes output and runtime. Light output: 140~150 lumens Convex lens create a smooth,powerful beam Corrosion resistant (aluminum 6463 T6,aircraft grade), Water resistant, shock proof Easy to install with bicycle bracket,ideal for mountain climbing, biking, camping, hiking and other outdoor sports