1). 1 x CREE XM-L2 LED, 1000LM
2). LED lifespan:50,000 hours.
3). Modes: High - middle - low - Flash;
3)  Strobe Function: by holding 3 secs of button in any setting.
4). Battery: 4.2 V 8800mAh battery pack.
5). Material:Aluminum alloy housing, anodized anti-abrasion finish.
6). Kit: Lamp, waterproof battery, charger, 2 x Rubber Orings, head strap or helmet strap, Gift box.
7). Functions as bike light / headlamp / helmet lamp.
8). Weight: 120g.
9). 42 x 52mm. 
10). Charging time: 12 - 14H.
11). Running time: 5H.