1. Special design for medical worker , maintenance personnel and daily life use; 
2. Convenient tactical tailcap switch control;
3. Three bright mode ,have memory function;
4. Max output up to 280 lumens; 
5. Latest high performance optical system, max beam distance up to 59 meters;
6. Built-in advanced efficient power management circuit, max runtime to 20 hours;
7. New circuit design providing double intelligent protections for LED and battery to maximize their lifespan and ensure safe use;
8. IPX-8 waterproof (submersible up to 2 meters);
9. Impact-resistant accords with US MIL-STD-810F (1.5 meters);