technical parameter:
1.Voltage : 3.7 V
 2.Capacity :2200 mAh
 3.Current :350-800 mAh
 4.Light flux : 120 Lm
 5.Bulb life::≥ 500000 h
 6.Battery life: 3 hours in high, 6 hours in weak (2*CR123 3V  battery)
weight  and size
Bazel dia:32 mm
Body dia:25 mm
Length:136.3 mm
Weight: 113 g (exclude battery)
features
1.Toughened ultra-clear glass lens
2.Highly efficient focusing head
3.Use 1pc of Cree led with lifespan 100,000 hours high lumens
4.Durable Aluminum alloy with anodized finish
5.Anti-roll, slip-resistant body design
6.Reverse protective & Short circuit protective
7.Shockproof and waterproof