Ok, I think the C6700 and the C7700 are exactly the same electrically. I've attached the manuals which have the specifications, and both have 12V 100W Halogen lamps, and the power supply is listed. If you could confirm that would be great Thanks for all this help, doubt I would have figured it out.

http://dl.dropbox.com/u/10765/C6700.PDF
http://dl.dropbox.com/u/10765/LPL_C7...Manual_OCR.pdf