Serfas E-LUME 500 USB HeadLight

An incredibly powerful 500 lumen LED headlight, in a relatively small package. Great for road-bikes and hybrids, when you need to see the road or path in front of you. USB rechargeable. CNC aluminum body for durability. 3 level battery life indicator. 2200 mAh LG battery (easily replaceable at end of life). 6 modes: 500 lumen constant (2.5 hours), 200 lumen constant (3.5 hours), 100 lumen constant (7 hours), 50 lumen constant (14.5 hours), Breathing flash (25 hours), Flashing (20 hours). IPX3 waterproof. Fits up to 35.0 clamp diameter. Includes bar bracket/mount with rubber grommet & charging cable. 162 grams.