Technical parameter:
Voltage: 3.7V
Capacity: 2, 200mAh
Current: 350 - 800mAh
Light flux: 120lm
Run temperature: -40 to 60 degree Celsius
Bulb lifespan: ≥ 100, 000hrs
Battery lifespan: 3 hours in high, 6 hours in weak (1 x 18, 650 rechargeable battery)

Functions:
100% brightness: Constant 150lm, 3 hours, 700mAh
50% brightness: 75lm, 6 hours, 350mAh
30% brightness: 45lm, 7.5 hours, 200mAh
Strobe: 150lm, 4 hours, 700mAh
SOS: 150lm, 4 hours, 700mAh

Features:
Toughened ultra-clear glass lens
Highly efficient focusing head
Use 1PC of Cree LED with lifespan 100, 000 hours high lumens
Durable aluminum alloy with HA111 anodized finish
Anti-roll, slip-resistant body design
Reverse protective and short-circuit protection
Shockproof and waterproof