Serfas E-LUME 605 USB HeadLight

An incredibly powerful 605 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. Constant modes: Overdrive 605 Lumens (1.75 hrs), High 400 Lumens (2.75 hrs), Medium 200 Lumens (4 hrs), Low 100 Lumens (8 hrs) Flash Modes: Daytime 605 Lumens (25 hrs), Low 100 Lumens (80 hrs). 162 Grams w/ Bracket. Li-Ion 2500 mAh battery.