It funny because this light reminds me so much of the MAG-ROP (2x26650) that it replaces. I have had that light for ~3+ years, and use it every now and then. But those ROP lamps will vent some strange foul smelling vapor/liquid, so you have to burn the PR lamp in by running it for ~15-20 minutes straight with the window glass off. I also had to add copper braid wire to the tailcap spring on those ROP builds... just like this J12. It took a little effort but I think I got it dialed in now. I am a little bummed about my springs melting, I hope others don't have this problem too.
I hope mine lasts as long as yours benkie, its a great light so far. I was doing some ceiling bounce comparisons and LO mode is a really nice floody, cool running ~250 Lumens. Perfect for around the house tasks.
Yeah your driver setup looks completely different than mine. I found your old pics from a few months ago...
https://budgetlightforum.com/t/-/5619#comment-116214
Mine has a brass retainer that clamps the driver board in place.
