constant on/off;
Momentary On;
Extensive lifetime LED;
LED with long life span;
O-ring sealed, Waterproof;
Micro-faceted reflector;
Long burning time;
Surface could be oxidized as various colors;
Can be made in different designs;
Police and military recommended;
Batteries;2pcs 16340 rechargeable lithium batteries, or 1pcs 17670 rechargeable lithium battery, or 2 pcs of CR123A lithium batteries, Battery not included ;
Lanyard included;
Customer's logo can be printed on