I'm looking at purchasing a laser cutting machine that I've seen on eBay. The seller imported the machine 3 years ago, tested it, but didn't use it again.
The machine looks great, however the reverse picture has a weird plug socket attached (see picture). I don't know what the purpose of this socket is and it just looks odd to me - is it something I should be concerned about?
It's a 50W - I need it to cut & engrave 3-5mm acrylic sheets so the power is fine for me.