Oops! Never trust a semiconductor fart.
Looks like the IRF840 MOSFET lost its Magic Smoke and shorted (Magic Smoke is both an insulator and conductor) and unwarranted voltage got back and explosively decapsulated the controller IC.
I bet this one went Snap Crackle Pop.
This was from an older BrightLine florescent stage light. Newer versions just use a couple of little Advance ballasts instead of a big arse custom PCB. I’m upgrading it to the new hardware.
