A versatile, rechargeable-only headlamp, the Sprinter helps you to reduce battery waste, while its super low-profile design and excellent for-aft balance make it ideal for high-impact activities. * Product Material: Other * Product Weight: 0.23 lbs. * 1 DoublePower LED with 75 lumens (max setting) projects a strong, ovalized beam to light the path ahead * Red taillight strobe for visibility in urban areas with on/off switch * Powered by a lithium polymer rechargeable battery (5-hour USB charge time) * Settings include full strength, dimming and strobe * Regulated for constant illumination on max brightness setting * Protected against water immersion down to 1m (3.3ft) for 30 minutes * 6 hours burntime on highest setting * 42 hours burntime on lowest setting * Rechargeable lithium polymer battery included * 105g with battery * Retail Package Dimensions: 10.5x11.5x8.3cm