I have dealt with them and they are good.
http://restorationstuff.com/pdf/Rest...plyCompany.pdf
Look at page 8 ofthe catalogue for the special two pin fittings for light bulbs.
I have been looking for the 3 wire set for the cab 11/12 headlight buckets and still can't find them..... may have to make something from their parts.
No connection blah blah...
Bob C