No!

If you have the access you claim to have then you need the whole light. From that you can make a remote ballast and use the mogg socket to hold the light. Everything goes through the ballast either 120v in or 220v in and the output to the light requires capacitors for Mh and capacitors and an igniter for a HPS. They both require 277v ac to light up. You will need two heavy-duty cords one for the power in and one from the transformer to the light socket.

That is what Psycho was saying.