Why You Should Think Twice Before Buying That '10,000 Lumen' Flashlight - SlashGear

There are loads of flashlights out there that advertise very high lumen counts, like 10,000. They do usually hit this mark, but there's a very big catch.

Sites like 1Lumen Flashlight Reviews and Dave's Tech Reviews test torches frequently and found that the Imalent MS03  touted as having 13,000 lumens could only maintain that output for 45 seconds bef…