Definition: a portable device used by tactical professionals to illuminate dark areas or navigate in low-light conditions.

1. What makes a flashlight a tactical flashlight?
A tactical flashlight is designed to be durable, lightweight, and bright. It usually includes a strobe mode, a bezel for striking, and a pocket clip or holster for easier carry.

2. What type of batteries do tactical flashlights use?
Most tactical flashlights use CR123A batteries or a rechargeable lithium-ion battery. CR123A batteries are known for their long shelf life and high power output, while lithium-ion batteries are more environmentally friendly and cost-effective.

3. Can tactical flashlights be waterproof?
Yes, many tactical flashlights are designed to be waterproof or at least water-resistant. This allows them to be used in wet conditions or even underwater in some cases.

4. How bright should a tactical flashlight be?
The brightness of a tactical flashlight is measured in lumens, and a good range for a tactical flashlight is between 500 and 1000 lumens. This is bright enough to illuminate dark areas or temporarily blind an attacker but not so bright that it hinders your own vision.

5. Are there any disadvantages to using a tactical flashlight?
One disadvantage of using a tactical flashlight is that holding it can reveal your location in low-light conditions. Additionally, if you use the strobe mode, it can disorient other people nearby, including your teammates. However, the benefits of having a reliable light source in tactical situations usually outweigh these issues.