Welcometo the forum.
First off, read the stickies and forum rules before posting. This section is for introducing yourself to the other members of the forum. This post should go in the Help/Repair section. A common mistake for "noobies", don't worry about it. Just make sure you are in the right section from now on.
You can edit this post by pressing EDIT>GO ADVANCED in the bottom right hand corner of the text box,and then change the title and text, then type in a proper introduction.:beer:
What you are describing sounds like a PSU (power supply unit) for a CO2 (carbon dioxide) laser. Does it have a long glass tube in it? Or a yellow sticker stating Class IV laser?
If not, it is probably just the PSU.
If you want more info., post a question in the Help section with some pictures. There are millions of different lasers and power supply's out there. Without pictures it is almost impossible to tell you what it is.