Olight M31 Triton Flashlight (SST-50) (800 lumens)

Weight: 6.00 lbs

Olight M31 Triton Flashlight (SST-50) (800 lumens)

Olight M31 Triton - this is Olight's newest and largest flashlight in the midrange M-series. The M-series has been very popular with military and law enforcement personnel and the M31 with its 25mm (1") body diameter is ideal for weapon mounting. And, if you need a long throw light for hunting, this is a great choice. The heart of the M31 is its Luminus SST-50 LED capable of producing a maximum output of 800 lumens. It is a tactical light with the same user interface as the M20 and M21 models (on/off tail switch and a twist of the head to change modes). The flashlight and accessories come in a nice blow-mold case for transport and storage.

  • Note 1 - Olight strongly suggests that high mode be using sparingly. Due to its high power consumption, there may be excessive heat build up over time which can damage the batteries or the flashlight. Olight's SR50 uses the same LED and lense/reflector assembly for similar performance and photometrics but has a larger body size and heatsink for extensive use on "high" without thermal issues.
  • Note 2 - Olight does not recommend using RCR123A (rechargeable Li-ion) batteries as they cannot provide adequate power when used in "high" mode.

Additional Photos (features/details)

The M31 has several battery options....standard use is 3xCR123A or 2x18500 batteries but with the tube extension, 4xCR123A or 2x18650 cells can be used. In the short configuration, there is a battery magazine to hold a pre-loaded set of 3xCR123A's making replacement very easy and eliminating any rattle of the battery cells in the tube.


  • Uses Luminus SST-50 LED
  • Output & Runtime: Three brightness levels and strobe mode
  • (1). High - 800 Lumens / 1 hour
  • (2). Medium - 320 Lumens / 3.5 hours
  • (2). Low - 60 Lumens / 14 hours
  • (3). Strobe: 10 Hz / 2 hours
  • Batteries - 3xCR123A or 2x18500 . With the tube extension, 4xCR123A or 2x18650
  • Dimensions: Length:211mm (8.31”)
  • Body Diameter: 25mm (.98”)
  • Weight: 266grams (9.38oz) (Without batteries)
  • Accessories Included - tube extender, holster, battery magazine (for 3xCR123A), 2 spare o-rings, owners manual & storage case


  • World-class super bright Luminus SST-50 LED
  • Max 800 lumens
  • Smooth reflector offers max 700m long throw
  • Max 14 hours long runtime (in "low" mode)
  • Three digitally controlled constant brightness levels and strobe
  • Rugged indestructible aluminum body with anti-scratching type III hard anodization
  • Engineered anti-slip knurling for a tightly firm grip
  • Tactical forward switch for power on/off and easy momentary-on
  • Dentate bezel head and tail provided for close quarter combat
  • Multi-scattering slot design to protect LED and electronic components
  • Highly water resistant to IPX-8
  • Anti-shattering ultra clear lens, anti-scratching and anti-slip
  • Friendly user interface, rotate the head for transferring mode.
  • Operated by 2x18650 with extra extended tube to prolong the runtime
  • Removable stainless steel clip
  • Mountable on weapons with compatible weapon mount


Olight's official factory warranty policy is 2 years from the date of purchase. Ultimate Garage will extend this US warranty on the M20/M21/M30/M31 to 5 years, parts and labor! This assumes the light has not been tampered with, abused or improperly repaired. Customer is responsible for all shipping costs on warranty repairs or replacements.

Additional Comments - The best way to determine which light is right for you is to evaluate them personally. Local NJ customers can contact me directly to stop by for a demonstration of the full Olight line and any of the other products we sell.

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