Its a laser. Because the plug required was avialable. It was a internet purchase and by wire.
The seller was ignoring me from the start after 1 st payment
I will try to get a simple description.
Bought an expensive used medical device. There was stipulation for a 90 day warranty. Seller claimed to have gone over the device in all respects before sending it. I was not able to arrange testing the machine till after the 90 days, after which period I...