Caveat emptor is good advice in general, but in the wilds of eBay, being careful with what you buy could be life-saving. To wit, we present [Les Wright]’s teardown and very ginger power-up of an eBay tattoo-removal laser power supply.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/03/24/fail-of-the-week-a-potentially-lethal-tattoo-removal-laser-power-supply/