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  • ACEBEAM T37 Tactical and Duty Flashlight - Tactical and Duty Flashlight
  • ACEBEAM T37 Tactical and Duty Flashlight - SFT-90X LED Flashlight
  • ACEBEAM T37 Tactical and Duty Flashlight - Tactical Flashlight
ACEBEAM T37 Tactical and Duty Flashlight - Tactical and Duty Flashlight
ACEBEAM T37 Tactical and Duty Flashlight - SFT-90X LED Flashlight
ACEBEAM T37 Tactical and Duty Flashlight - Tactical Flashlight
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#high powered tactical flashlights (31)
   5 | 8 review(s) | Add your review 5.0 5 8

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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T37 Tactical and Duty Flashlight tactical flashlight overview image highlighting 4,000 lumen output

T37 Tactical and Duty Flashlight beam performance image highlighting 440 meter beam distance

T37 Tactical and Duty Flashlight switch control detail image highlighting IP68 protection

T37 Tactical and Duty Flashlight charging port detail image highlighting USB-C rechargeable design

T37 Tactical and Duty Flashlight rugged body detail image highlighting 21700 battery power

T37 Tactical and Duty Flashlight field use image highlighting SFT-90X LED performance

T37 Tactical and Duty Flashlight tactical flashlight overview image highlighting 4,000 lumen output

T37 Tactical and Duty Flashlight beam performance image highlighting 440 meter beam distance

T37 Tactical and Duty Flashlight switch control detail image highlighting IP68 protection

T37 Tactical and Duty Flashlight charging port detail image highlighting USB-C rechargeable design

T37 Tactical and Duty Flashlight rugged body detail image highlighting 21700 battery power

T37 Tactical and Duty Flashlight field use image highlighting SFT-90X LED performance

Details

  • LED: SFT-90X 6500K, 4000lm/440m
  • Switch: Rotary magnetic (5 modes) + two-stage tail (momentary/constant)
  • Charging: Hidden USB-C, 2.5h
  • Runtime: 72h UltraLow
  • Bezel: Strike bezel (self-defense/glass break)
  • Indicator: Battery level
  • Battery: Replaceable
  • Protection: IP68

Battery

1 x 5000mAh 21700 Rechargeable

Size

L: 145.2mm / 5.71"
HeadD: 30mm / 1.18"
H: 26.3mm / 1.03"
W: 202g / 7.1oz

Outputs (SFT-90X)

ModeOutputDistanceIntensityRuntime
UltraLow30lm––72h
Low90lm69m1190cd25h
Med1170lm95m2256cd13.4h
Med2420lm143m5112cd5.4h
High1000~700lm190m9025cd30min~3h
Turbo4000~700lm440m48400cd1min~3.5h
Strobe4000~700lm–––
4000lm · 440m · 72h · 48400cd

Frequently Asked Questions

Q: What kind of LED is used in T37?
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. 

Q: What is the maximum brightness of the ACEBEAM T37?
A: The ACEBEAM T37 can produce up to 4,000 lumens.
Q: How far can the beam reach?
A: The flashlight has a beam distance of up to 440 meters.
Q: What types of modes does the flashlight have?
A: The T37 features five modes, Lockout, Ultra Low, Low-Med1-Med2-High, Turbo and Strobe.
Q: What is the runtime in Ultra Low mode?
A: In Ultra Low mode, the flashlight can run for up to 72 hours.
Q: 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.
Q: Is the battery replaceable?
A: Yes, the flashlight features a replaceable battery for easy power management.
Q: 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.
Q: What safety features are included?
A: The flashlight includes a Strike Bezel for self-defense and emergency glass breaking.
Q: 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
Heavy duty!
This dedicated tactical and duty flashlight is built to handle the absolute harshest conditions on earth. The physical switches feel incredibly crisp, responsive, and easy to locate blindly in the dark. The beam profile offers an excellent balance of a tight, blinding hot spot and generous peripheral illumination.
[hide member info] | 7/18/2026 1:48 PM
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Perfect Tactical EDC Light
The Quality of the product is outstanding and very reliable. The magnetic ring switch is optimal for quick mode selection and offers user friendly usage. Also the included holster has a good quality and offers nice protection for the flashlight.
[hide member info] | 7/4/2026 5:50 PM
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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
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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
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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
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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
Was this review helpful? (1/0)
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
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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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