LR500S, 500 LUMENS (USB) - Curve Lens with Side Visibility - Runtime Extension - Dimensions (Headlight): 85mm x 36mm x 30mm - 500 Lumens - Led: 1* CREE XP-G2 with lifes pan of 50000 hours - USB Rechargeable and 1.6-15 hrs run time - Battery: 2200mAh/3.7V Lithium ion batteries (USB) - Wide Beam: 1.6h (High), 2.8h (Mid), 7.5h ( Low), 15h (rapid Flashing) - Fits: 22.2mm to 35mm Handlebars - Material: Anodized aluminum - Weight: 119g