Acebeam T37 – 4,000 Lumen Tactical Duty Flashlight
The Acebeam T37 is a compact tactical duty flashlight built for law enforcement, search and rescue, and demanding outdoor use. A single SFT-90X 6500K LED produces up to 4,000 lumens with a focused beam that reaches 440 meters (481 yards), while a rotary magnetic switch and two-stage tactical tail switch put five brightness levels plus Strobe at your fingertips. Going Gear is an authorized Acebeam dealer.
Long-Throw SFT-90X Performance
The SFT-90X emitter drives a peak beam intensity of 48,400 candela, giving the Acebeam T37 the reach to identify targets at long range in an easily carried 5.71" duty light. Instant access to Turbo and Strobe from the tail switch covers high-pressure tactical moments, while Ultra Low stretches runtime to 72 hours.
USB-C Charging and Replaceable 21700 Power
A hidden USB-C port recharges the included 21700 5000mAh Li-ion battery in about 2.5 hours, and the replaceable design lets you swap cells instantly during extended missions. A battery level indicator shows remaining power at a glance.
Built for Duty
The Acebeam T37 is IP68 waterproof and dustproof, impact resistant to 1.5 meters, and finished with a stainless strike bezel for emergency glass breaking or self-defense. At 7.1 oz with battery, it carries easily on a belt or in a pocket with the included clip.
Acebeam T37 Specifications
| Specification |
Detail |
| Brand |
Acebeam |
| Model / SKU |
T37 |
| Light Source |
1 x SFT-90X 6500K LED |
| Max Output |
4,000 lumens (Turbo) |
| Max Beam Distance |
440 m (481 yd) |
| Peak Beam Intensity |
48,400 cd |
| Modes |
Ultra Low 30 lm (72 h) / Low 90 lm / Med1 170 lm / Med2 420 lm / High 1000→700 lm / Turbo 4000→700 lm / Strobe |
| Battery |
1 x 21700 5000mAh Li-ion (included, replaceable) |
| Recharge Time |
About 2.5 hours via USB-C |
| Length |
5.71" (145.2 mm) |
| Head Diameter |
1.18" (30 mm) |
| Body Diameter |
1.03" (26.3 mm) |
| Weight |
7.1 oz (202 g) including battery |
| Waterproof Rating |
IP68 |
| Impact Resistance |
1.5 m |
| Special Feature |
Stainless strike bezel |
Frequently Asked Questions
How many lumens is the Acebeam T37?
The Acebeam T37 has a maximum output of 4,000 lumens in Turbo mode with a peak beam intensity of 48,400 candela, stepping down to a sustained 700 lumens for extended use.
How far does the Acebeam T37 throw?
The Acebeam T37 reaches a maximum beam distance of 440 meters (481 yards), thanks to its focused SFT-90X 6500K LED — long-throw performance suited to search, patrol, and property checks.
What battery does the Acebeam T37 use?
The Acebeam T37 uses a 21700 5000mAh Li-ion battery, which is included. It recharges in about 2.5 hours through a hidden USB-C port and is fully replaceable, so you can swap in a fresh cell during long missions.
Is the Acebeam T37 waterproof?
Yes — the Acebeam T37 is IP68 waterproof and dustproof and impact resistant to 1.5 meters, making it dependable in rain, dust, and rough handling.
How do the controls on the Acebeam T37 work?
The Acebeam T37 pairs a rotary magnetic switch for selecting its five brightness modes with a two-stage tactical tail switch offering momentary and constant-on activation, plus instant access to Turbo and Strobe.
Is the Acebeam T37 good for tactical and duty use?
Yes — the Acebeam T37 was designed as a duty light: instant Turbo and Strobe, a stainless strike bezel for emergencies, replaceable 21700 power, and an IP68-rated body make it well suited to law enforcement, security, and tactical applications.
Where can I buy the Acebeam T37?
The Acebeam T37 is available at Going Gear, an authorized Acebeam dealer, with fast shipping and expert customer support.
