This is a frame of a video taken when I visited my brother in the summer, but I took the screen cap when I was cleaning out my phone just a moment ago, so it's arguably RFN.
We were playing with a
high powered LED he got, and I was holding the 36 volt conductors to the LED terminals to get it to light up. It was kind of bright. Imagine this in a flashlight? You could build a flashlight for it that took 4x9 volt batteries. Almost 8000 lumens, compared to most flashlights that have about 100 lumens.
