The Nitecore P10 V2 torch has a maximum output of 1100 lumens when using 2 x CR123 single use batteries or 1000 lumens with a single li-ion 18650. The flashlight has a Cree XP-L2 V6 LED with a lifespan of 50,000 hours. Featuring 2nd Generation Strobe Ready technology, the P10 V2 has been designed for tactical applications, providing instant access to Strobe mode for emergency situations. Additionally the flashlight comes with the NTH10 tactical holster for safe storage and easy access. To ensure direct access to the output most suited to your application, the P10 V2 has three modes; select between Daily (provides access to all three brightness levels, plus strobe mode), Tactical (high and strobe mode) and Law Enforcement (mid, high and strobe mode). To switch between the modes, loosen the tail cap and then tighten whilst holding the Strobe Ready switch. The LED will indicate which mode has been entered by flashing once for Tactical, twice for Law Enforcement and three times for Daily. With a 1" body and head diameter, the Nitecore flashlight is compatible with a range of accessories, including 25.4mm filters, diffusers, gun mounts and the Nitecore RSW2D remote switch. Brightness Levels: Using 1 x 18650 Li-ion battery High: 1000 lumens - 3 hrs runtime Mid (Daily mode): 370 lumens - 7 hrs runtime Mid (Law Enforcement mofe): 200 lumens - 18 hrs runtime Low: 60 lumens - 55 hrs runtime Strobe: 1000 lumens Using 2 x CR123 batteries High: 1100 lumens - 1 hr runtime Mid (Daily mode): 370 lumens - 2 hrs runtime Mid (Law Enforcement mode): 200 lumens - 3 hrs runtime Low: 60 lumens - 14 hrs runtime Strobe: 1100 lumens Maximum beam distance 198 meters with 18650 or 201 meters with 2 x CR123 batteries. Waterproof to IP68 and resistant to impacts up to 1 meter. Includes: Nitecore NTH10 holster, pocket clip, lanyard, spare o-ring, CR123 battery magazine.