A flashlight is a portable device or gadget whatever you say. Flashlight could be used various purpose like hunting, camping, mounting etc. But how to select best tactical flashlight?

Selecting best tactical flashlight is not easy. You have to consider few important factor to select it.
Light power (which are are measured by lumens), Aluminium hard body of the flashlight, size of the flashlight and last and most important is the battery rechargeable or not.
A rechargeable battery flashlight can reduce your total cost.
Rechargeable batteries you can use again and again. Just you need to charge those batteries regularly. On the other hand if you buy one time battery then you need to buy new one when it decrease charge.
You can read details about  rechargeable flashlight here.