Watch the world's brightest flashlight burn stuff

Andrea James 10:12 am Tue Jan 30, 2018

What happens when a 32,000-lumen flashlight gets concentrated through a magnifying glass or a fresnel lens? Some cool optics, but not a lot of burning.

Later, The Action Lab does show that the flashlight can certainly heat up black construction paper quite nicely by itself.

This is a follow-up on his shining of the flashlight on an untrablack object coated in black 2.0:

• What Happens If You Magnify the Worlds Brightest Flashlight? (YouTube / The Action Lab)

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