Features:
Utilizes imported Nichia 519A High CRI>90 5000K LED, delivers a large, smooth and uniformed beam without artifacts.
Delivers a max output of 600 lumens and a up to 101 meters throw, perfectly suitable for carrying out and taking care of everyday tasks.
Powered by one 14100 3.7V 1600mAh Acebeam customized Lithium-ion battery.
Compatible with two widely available standard AA batteries, it runs up to 13.5 days at 0.5 lumens.
The anti-slip tail switch allows quickly turning the light on/off or shifting modes between Low and High, always starting on low. 
Includes a two-way pocket clip to clamp securely onto shirts, or pockets - a great EDC option.
Waterproof and dustproof rating in accordance with IP68.
Impact resistant to 1 meter.

Specifications:
Powered by 1 x 14100 3.7V 1600mAh Acebeam customized Lithium-ion battery
Low: 20lumens; 23hours
High: 600~360lumens; 35seconds 1hour44min; 101meters; 2,550cd
Powered by 2 x Ni-MH Batteries
Low: 0.5lumens; 13.5days
High: 300~100~50lumens; 35seconds 5hours13min 10minPowered by 2 x Alkaline Batteries
Low: 0.5lumens; 12days
High: 300~100~50lumens; 35seconds 3hours13min 28min
Max. output 600 lumens 
Max. beam distance: 101meters
Max. runtime: 13.5 Days (Powered by 2 x AA Ni-MH batteries)
Peak beam intensity: 2,550cd
Size: 5.7'' x 0.72'' x  0.68'' / 144 x 18.2 x 17 mm.
Weight: 42g (1.5oz) (Excluding battery), 85.5g (3.0oz) (Including battery)