The Nitecore P10i is a versatile and powerful torch built with military and law-enforcement use in mind.  Paired with an upgraded 21700i battery, it can provide up to more than 38 hours of uninterrupted illumination on low mode and its dual tail switch makes for easy one-hand operation.  The non-linear strobe patterns cause dizzying effects, very helpful to get through in tough situations.  The front is equally equipped with hard aggressive pongs which could be a life saver as well in emergency situations.

Why buy this flashlight?

• Max output of 1800 lumens with 317 yard throw
• 3 brightness and strobe ready mode for single-handed operation
• Rechargeable via usb-c port
• Built-in power indicator that flashes to show power level remaining
• Anti-impact reverse polarity protection mechanism
• Rugged HAIII military grade hard-anodized aluminum alloy
• Silicon nitride ceramic inlays in bezel

Why not?

• 1 × 21700, 2 × CR123
• Only 38hours maximum runtime on low mode
• Only one special mode

Specifications:

• LED: Luminus SST-40-W LED
• Reflector: Precision aluminum
• Lens: Toughened ultra-clear mineral glass
• Modes/Brightness Output: High (1800 lumen/1hr30min), Mid (280 lumen/7hr15min), Low (35 lumen/38hr), Strobe (1800 lumen/--)
• Peak Beam Intensity: 21100 cd
• IP Rating: IP68 - 2m submersible
• Impact Resistance: 1 m
• Dimensions: L-5.79"xW-1"xH-1"
• Weight: 2.96oz