The Nitecore MH10S is a versatile and powerful torch built with military and law-enforcement use in mind.  Paired with an upgraded 21700i battery, it punches way about its weight to provide a peak output of 1800 lumens and up to more than 1500 hours of uninterrupted illumination on ultra-low mode.  The tail switch will also give you access to all the output intensities or modes and will remember the last output selected and automatically goes to that level the next time it's turned on.  The light is also equipped with a non-linear strobe patterns that cause dizzying effects, very helpful to get through in tough situations and make it a great life saver as well in emergency situations.

Why buy this flashlight?

• An optical system combined with crystal coaching and Precision Digital Optics Technology
• USB-C rechargeable
• The metal side switch controls 5 brightness levels and 3 special modes
• Strobe mode uses randomly changing frequencies for stronger dizzying effects
• A power indicator beneath the sides switch indicates the remaining battery power
• The power indicator can display the battery voltage
• Intelligent Li-ion battery charging circuit with a USB-C port
• Highly efficient constant current circuit provides a stable output
• Incorporated Advanced Temperature Regulation module
• Electronic reverse polarity protection
• Optical lenses with double-sided scratch resistant coating
• Constructed from aero grade aluminum alloy
• HA III military grade hard-anodized finish
• Tail stand capability

Why not?

• Max peak beam intensity of 21,600cd and a max throw of 294 meters
• Max output of 1,800 lumens
• Compatible batteries: 21700 Li-on 18650 and CR123 batteries

Specifications:

• LED: Luminus SST-40-W LED
• Maximum Brightness: 1800 lumen
• Beam Color: White
• Peak Beam Distance: 294 meter
• Peak Beam Intensity: 21600cd
• IP Rating: IP68
• Impact Resistance: 2m
• Modes/Brightness Output: Turbo (1800 lumen/ 30min), High (1050 lumen/ 2hr 30 min), Mid (300 lumen/5hr), Low (50 lumen/32hr), Ultralow (1 lumen/ 1500hr), Strobe (1800 lumen/-), Beacon (1800 lumen/-), SOS (1800 lumen/-)
• Length 131.3 mm / 5.17 in
• Head Size 25.4 mm / 1.00 in
• Weight 69.7 g / 2.46 Oz