It is definitely insane but I wouldnt call that impossibly difficult for any of the experienced modders here at BLF to do. Skill is not the limitation in builds like this, money and time are. Once you are certain that anything you build can and will be sold, its safe to come up with the crazy ideas.
Vinh loves to use FET drivers so I’m guessing a dual driver setup one for each switch, maybe 2x 2P XHP70 and 16x 2S8P XP-G3/XP-L HI each driver to achieve a balanced Vf.
For 40000 lumens? 32 XP-L HIs and 4 XHP70s? Why all those Cree leds? I mean 40000 lumens can be generated by 12 Latticebright leds. Easily. Pfff……amateur….
Or one or two COBs.
I don’t see the appeal of that flashlight… it’s just another “stick as many LEDs as possible for 2 mins runtime” floodlight.
The only thing I find impressive about it is the driver they designed to power all that.