Thanks Albert.
So if I have a wood canopy, and want to keep the bulkiness outside of it, I should probably go with the TEK retro so I can have the ballast on the top of the canopy or hanging on the wall near it? Is there any issue with the heat on those ballasts? Can you tell what the shipping is in chicagoland, I would of course want 2 bulbs. BTW, the bulkheads and food I got from you have worked out great.