The Acebeam T37 Tactical and Duty Flashlight offers a maximum output of up to 4000 lumens and a beam distance of up to 440 meters, powered by a single SFT-90X 6500K LED. It includes a 21700 Li-ion battery which allows you to easily swap out the battery when it runs low, ensuring you have power for as long as you need it. The T37 is rechargeable via USB-C and charges in just 2.5 hours with a runtime of up to 72 hours in ultra-low mode. For added durability, the USB-C port is concealed to protect it from dirt, moisture, and dust.

The flashlight features a rotary magnetic switch that allows for easy and precise access to five different modes, including instant Turbo and Strobe modes. Simply rotate the switch to select the desired mode, which also includes a lockout mode.

Additionally, the tactical tail switch is designed to perform well in any environment, providing a quick and reliable response in various situations:

- Half Press: Momentary on

- Full Press: Constant on

Brightness Levels:
Ultra-Low: 30 lumens, 72hrs runtime
Low: 90 lumens, 25hrs runtime, 69 meters
Med1: 170 lumens, 13.4hrs runtime, 95 meters
Med2: 420 meters, 5.4hrs runtime, 143 meters
High: 1000~700 lumens, 30mins + 3hrs runtime, 190 meters
Turbo: 4000~700 lumens, 1min + 3.5hrs runtime, 440 meters
Strobe: 4000~700 lumens

The T37 has a waterproof rating of IP68 and an impact resistance of up to 1.5 meters.