What makes a 18650 Flashlight?

The 18650 flashlight gets its name from the 18-mm diameter, 65-mm length battery offering high lumen counts, larger capacity, and rechargeable function.

What kind of Lumen output do I need for home defense?

When it comes to home defense, you're looking for lumens and functionality. Look for high lumen counts above 1,500. However, modes like strobing and a tactical bevel are also critical features for your home-defense 18650 flashlights.