Measureing Lux, Flashlight Beam Distance, Throw, range, Yards, Meters.

Here is a quick tutorial on gauging the range of a flashlight for those of you who are interested.

Thanks also to vinhnguyen54 for his assistance on the lux to meter conversions .

Wait… 21,075 x 4=843,000? Not 84,000?


Video says private?

Oh, sorry. There were a couple of things in that 2016 video that I no longer do when measuring because I’ve since found better ways. Also there was a typo on the calculations written on the screen that were confusing people so I took it down. I’ve not had a chance to make a new video yet.