Flashlights with 21700 batteries: for powerful lights
Flashlights with a 21700 battery last longer, have more power and a longer burn time than other lights. For that reason a flashlight with a 21700 battery will often last longer and/or has more lumens. Do you use your flashlight on a regular basis? If so, we can definitely recommend a light with a 21700 battery!
Torches & batteries