where to buy power compact sockets ( 4 pin square )

[roclimber]

hi there, i searched through the forum but can't seem to find any thread about it...well i didn't spend too much time though.

make long story short, i am trying to build a light canopy for my 55 gal tank using power compact, along with a workhorse 7 ballast. My question is where can i buy the 4 pin square socket for the bulbs? i went to bigals, jlaquatics but can't seem to find it on their website.

Does anyone know of anyplace in calgary or website where i can order some?

thx in advance for any help.