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T37 Tactical and Duty Flashlight

$129.90

The ACEBEAM T37 is a high-performance tactical and duty flashlight designed for demanding situations. Equipped with a single SFT-90X 6500K LED, it produces a highly concentrated beam of light for superior focus and intensity, reaching up to 4,000 lumens and a distance of 440 meters. The rotary magnetic switch allows for easy and precise access to five different modes, including instant Turbo and Strobe. Its two-stage tail switch offers both momentary and constant-on functionality, providing versatility based on your needs. Additionally, the flashlight features a hidden USB-C charging port, allowing you to recharge the 21700 battery back to full power in just 2.5 hours, with a runtime of up to 72 hours in Ultra Low mode. Combining handling, power, and precision, the ACEBEAM T37 is crafted for those who require exceptional performance from their flashlight.

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DETAILS

  • Powered by a single SFT-90X 6500K LED, it delivers a highly concentrated beam of light for superior focus and intensity, reaching up to 4,000 lumens and a distance of 440 meters.
  • Rotary magnetic switch allows for easy and precise access to five different modes, including instant Turbo and Strobe.
  • Two-stage tail switch offers both momentary and constant-on functionality.
  • Hidden USB-C charging port, allowing you to recharge the 21700 battery to full power in 2.5 hours, with a runtime of up to 72 hours in Ultra Low mode. 
  • A Strike Bezel with the sturdy pointed edge, as a reliable tool for self-defense and can easily break glass in emergencies.
  • Monitor your power levels at a glance with a battery indicator, knowing exactly when to charge your flashlight.
  • Battery replaceable, when your battery begins to run low, easily swap it out to ensure your flashlight remains powered.
  • Boasts a rugged IP68 waterproof and dustproof rating, making it your reliable companion in any environment.

BATTERIES

  • 1 x 5000mAh 21700 Rechargeable Li-ion Battery(Included)

SIZE

  • Length: 145.2mm/5.71"
  • Head dia.: 30mm/1.18"
  • Height: 26.3mm/1.03"
  • Weight: 202g/7.1oz (incl. battery)

OUTPUTS

  • 1 x 5000mAh 21700 Rechargeable Li-ion Battery

Ultra Low: 30 lumens; 72h 
Low: 90 lumens; 1190.25cd; 69 meters; 25h
Med1: 170 lumens; 2256.25cd; 95 meters; 13.4h
Med2: 420 lumens; 5112.25cd; 143 meters; 5.4h
High: 1000~700 lumens; 9025cd; 190 meters; 30min ~ 3h
Turbo: 4000~700 lumens; 48400cd; 440 meters; 1min~3.5h
Strobe: 4000~700 lumens

Max. output: 4000 lumens 
Max. beam distance: 440 meters
Max. runtime: 72h on Ultra Low(30 lumens)
Peak beam intensity: 48400cd

What kind of LED is used in T37? Does ACEBEAM offer LED replacement service?  
A: T37 utilizes one Luminus SFT-90X LED. 

ACEBEAM does not offer LED replacement services currently, and please do not replace the LEDs privately, as doing so might affect product performance and cause damage to the product. 

What is the maximum brightness of the ACEBEAM T37?
A: The ACEBEAM T37 can produce up to 4,000 lumens.

How far can the beam reach?
A: The flashlight has a beam distance of up to 440 meters.

What types of modes does the flashlight have?
A: The T37 features five modes, Lockout, Ultra Low, Low-Med1-Med2-High, Turbo and Strobe.

What is the runtime in Ultra Low mode?
A: In Ultra Low mode, the flashlight can run for up to 72 hours.

How long does it take to recharge the flashlight?
A: The ACEBEAM T37 can be fully recharged in just 2.5 hours using the hidden USB-C charging port.

Is the battery replaceable?
A: Yes, the flashlight features a replaceable battery for easy power management.

Can I use the flashlight in wet or dusty environments?
A: Yes. The T37 has an IP68 waterproof and dustproof rating, making it suitable for various environments.

What safety features are included?
A: The flashlight includes a Strike Bezel for self-defense and emergency glass breaking.

How can I monitor the battery levels?
A: The ACEBEAM T37 comes with a tail battery level indicator that allows you to check the power levels at a glance.

Existing reviews

Acebeam T37 Trio
I own three Acebeam T37 flashlights: the OD Green, the Black version, and the new MAO version. They are all amazing tactical flashlights.

The MAO finish is absolutely beautiful and really stands out compared to the other colors. All three T37s are very powerful, extremely solid, and feel very durable in hand. You can immediately tell they are made with high quality materials.

I really enjoy using them and I highly recommend the T37 to anyone looking for a reliable and powerful tactical flashlight.
[hide member info] | 5/18/2026 11:02 PM
Acebeam T37: The New Duty Standard
The Acebeam T37 is a masterclass in tactical evolution, centered around the monstrous SFT-90X LED. Delivering 4,000 lumens with a punchy 440-meter throw, it bridges the gap between a pocket floodlight and a dedicated search tool. For enthusiasts, the highlight is the rotary magnetic selector ring, which provides an incredibly satisfying, tactile way to cycle modes or lock the light without looking.

Its dual-switch interface—featuring a two-stage tactical tail cap—gives you instant, predictable control under stress. Compact enough for duty belt carry but powerful enough to dominate an open field, the T37 feels like the rugged, mechanical "bolt-action" of the flashlight world
[hide member info] | 1/13/2026 3:36 AM
Ring
Ring control makes mode switching effortless, turbo activates instantly with tail press. Output stays consistently high through long runtime without annoying steps. Grip texture secure without being harsh, fits perfectly for EDC pocket carry. Hidden USB-C port keeps clean aesthetic while making recharge dead simple. Solid tactical feel in small 21700 package.
[hide member info] | 1/10/2026 3:53 PM
GOLD please
The T37 is an excellent powerfulll flashlight, but my wife wishes it came in gold like the E75, unfortunately, that color isn’t available yet, lol!
[hide member info] | 12/16/2025 5:48 PM
Excellent T37 tactical
The T37 is an excellent flashlight. I really like the grip texture, which provides a very secure hold. Thanks to the mode ring, adjusting the brightness is quick and easy. The switch is comfortable to use, and the half-press function to change brightness levels is well designed—neither too hard nor too sensitive. It’s a very practical light, whether for night outings in abandoned buildings or simply for evening walks.
[hide member info] | 9/18/2025 9:22 AM
Acebeam does it again
No regrets with this T37 EDC tactical flashlight. Buttery smooth mode selection dials, hidden USB-C charging port and a well engineered flashlight. Being a user of the P20-Pro, this T37 uses an SFT-90X emitter which gives a white 6500K colour to the beam. Hot spots are wide and usable with a better than average spill, suitable for day to day use. This is my new everyday carry flashlight!

I have always been looking for an EDC that gives me instant turbo and a separate dial for strobe. This is the exact answer to my needs!
[hide member info] | 8/2/2025 9:05 PM
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