The Nitecore MH12S flashlight has a maximum output of 1800 lumens from the Luminus SST-40-W LED and has a range of battery options. The torch comes with a 21700 li-ion battery, or you can use an 18650 (with discharge current over 8A), 2 x CR123 or RCR123 cells inside the included battery magazine.
The torch is rechargeable via a USB-C port near the head of the light and comes with a USB charging cable. Please do not attempt to recharge the torch if using CR123 or RCR123 batteries.
Featuring an impressive maximum brightness level, the MH12S is ideal for emergency, self-defense, law enforcement and patrol applications. The versatile flashlight is compatible with a range of accessories, including the NTR10 tactical ring, RSW3 remote switch and gun mounts (all sold separately), in addition to the included NTH10 tactical holster.
Compact and lightweight, the MH12S flashlight is smaller than the MH12 V2 and MH12GTS models and offers a further throw of up to 294 meters. 
The Nitecore MH12S is operated by a dual switch user interface, made up of the tactical tail switch and metal side switch. The torch has two user modes, five brightness levels and three special modes, providing a light output for any scenario.
Brightness Levels:
Turbo: 1800 lumens - 45 mins runtime
High: 1050 lumens - 3 hrs. 15 mins runtime
Mid: 300 lumens - 7 hrs. 15 mins runtime
Low: 50 lumens - 45 hrs. runtime
Ultralow: 1 lumen - 1500 hrs. runtime
Plus Strobe, Beacon and SOS (1800 lumens).
Maximum beam distance 294 meters, waterproof to IP68 and resistant to impacts up to 1 meter.
Includes: Nite core NL2150 5000mAh 21700 li-ion battery, USB-C charging cable, pocket clip, lanyard, spare o-ring, 18650/CR123 battery magazine, Nite core NTH10 holster.