Serfas E-lume 500 Lumen USB Headlight

The Serfas E-lume 250 Lumen USB Headlight USL-250 is a premium USB rechargeable headlight with a host of great features.

Features:
– Compact Lightweight Aluminum Design
– Super Bright (500 Lumens) Output
– Water Resistant Rating: IPX4
– New 3 Level Battery Life Indicator
– Last Mode Memory
– Max Charges Rate of 700mA
– Charges from Dead to Fully Charge in 3.25 hours (Using 700mA Rated Charger)
– Solid Modes: Overdrive: (500 Lumens): 2.5 hrs, High (200 Lumens): 3.5 hrs, Medium (100 Lumens): 7 hrs, Low (50 Lumens): 14.5 hrs
– Flash Modes: Daytime Flash (500 Lumens): 25 hrs, Low Flash (100 Lumens): 20 hrs
– Weight: 162 Grams with Bracket
– Battery: LG® 1-Cell Li-Ion, 2200mAh