Because LED flashlights are so extraordinarily bright, those high/low/medium modes are genuinely useful though. Some even have an extra-low "moonlight" mode which is good for reading under your covers at night, retaining night vision while outdoors or being sneaky. Bonus points to any light that turns on in medium, that'll be your most-used setting.
LED flashlights, lanterns and radios are ideally suited for emergency preparedness and outdoor recreation activities, on land and water, while simultaneously supporting green technologies that lessen our impact on the environment. As technology advanced; particularly, with energy storage components including NiMH and Lithium batteries a new generation of products became available that accommodates power generation through dynamo generators (cranks) and solar power.
The brightest flashlight can make working in the dark easier and less frustrating. It illuminates the world's dangers so you can face down your fears one confident step at a time. And the best flashlight can have tactical features or rechargeable features. We may not have practical Star Wars light sabers yet, but how about a light that can actually start a fire?