safety in chemistry, but also in terms of functionality?

[naodorime]

TL;DR Summary

Asking if a 12v 120a is to much overkill

So, I bought a 12v 120a switching power supply, and the problem is that I don't know if a switching power supply is suitable for doing electrolysis, and now, in a moment of lucidity (I can still cancel the purchase) I came here to ask, so what does you guys say? Im not know much about it, sorry if I said something dumb, but this is like a gift from my parents cuz they know I like chemistry, but I dont wanna toooo much, hope you understand that I dont wanna something that will be to overkill