Just received another tattoo power supply that I bought on ebay. The seller sent me the wrong one initially but they let me keep it and sent me the right one after I contacted them about it. For a total cost of $13, I'm not going to complain . Here's a link to the ebay listing.
Noob question about these adjustable power supplies. Is the intention to give log-vapes temperature adjustment capabilities? Or is it more about just getting consistent temperatures from unit to unit, in different countries etc?