Haha that’s amazing. I literally didn’t realise that and since it said AC adaptor I just went with it as most of the other adaptors I have say “xxV DC @ xxA”. I was sure I’d missed something obvious but I’m teaching myself this stuff and apparently you do learn something new every day!
Thanks for the tips, I’ll head back to the electronics place today and I’ll pay closer attention to the details! (And double check with the shop staff LOL) Thank you!