There are so many different machines available nowadays that this is a bit like saying to someone I need a wheel for my car, but not saying what car it is.
Personally, I find this one of the many the hazards of buying professional equipment from ebay. You just don't know what you are getting....and in the long run it rarely saves you money....in fact it usually costs more.
If you are using this in your business, you really need supplier support and back-up, which of course you don't get off there.
The best advice I could give you, (although you may not want it) is stick it back on ebay and go to a reputable tanning supplier.....of which you will find many on here!