Axiom Lazer 200 Lumen Cree LED Rechargeable Bicycle Headlight High-powered Cree XT-E LED produces more light with less power and less heat Ultra-bright 200 lumen output for excellent visibility High-precision optical lens enhances clarity and focus Runtimes: 1 hour 50 minutes Overdrive, 3 hours 55 minutes High Beam, 8 hours Low Beam, 6 hours 55 minutes Strobe, 3 hours Flash, 3 hours SOS 6 light modes: Overdrive, High Beam, Low Beam, Strobe, Flash, SOS