Pure beam slide focus optic: shift between a super wide flood beam or spot mode with transition halo at varying distances and brightness all controllable with one hand
Dual power USB rechargeable: recharge the battery using any standard USB port. light can use either Li-ion rechargeable battery or CR123 battery
Specs: light output: 340 lm (high), 75 lm (low). beam distance: 178 m (high), 80 m (low). runtime: 1.5 hours (high), 4.25 hours (low). high, strobe, and low light modes