imi wrote on 2020-06-10, 21:35:

just get a cheap multimeter if you don't have one, a $10 one is enough for simple continuity testing

don't just "try" with mains voltage :p

exactly... It is not like an ATX soft switch you connect to a motherboard... Connect it wrong, best case you blow up the PSU, worst case you start a fire or get electrocuted...