Lezyne Powerdrive 1100XL Headlight Type of bulbs: LED Power source: Rechargeable Li-ion Modes: overdrive, blast, enduro, economy, flash, Pulse Lumens: [overdrive] 1100, [blast] 650, [enduro] 450, [economy] 150, [flash] 150, [Pulse] 150 Burn time: [overdrive] 1 hour 15 min, [blast] 1 hour 45 min, [enduro] 2 hours 40 min, [economy] 8 hours 15 min, [flash] 16 hours, [Pulse] 19 hours