Felt like this was one of his worst videos product wise. Lots of weird knock offs used and no standardization of lense size/ type. Some spot lights, some small leds...
He usually sticks to name brand and does a few knock off/budget brands for comparison.
ie milwaukee, makita, delwat, Harbor freight... plus a few off brands
This headlight test seemed like only off brands.
Nitecore is the only brand i recognized. No diamond back, petzl, energizer...
Still a great comparison and the lumen output after X time was cool to see. Just not sure I'd put much faith in these companies when walking out of the Maine woods in winter or on a back country hunting trip.
He did have lots of Amazon specials but also had a Nightcore, Fenix, Petzl and the well liked Sofirn. Interesting to see that they pretty much all overheated very quickly.