1.Use 1pc of Cree LED with lifespan 100,000 hours 2.Shockproof and waterproof 3. ... in high, 6 hours in weak (1 x 18,650 rechargeable battery)Functions: 100% brightness: constant 150lm, 3 hours, 700mAh 50 ... glass lens Highly efficient focusing head Use 1pc of Cree LED with lifespan 100,000 hours high lumens Durable aluminum alloy ...