Thats the problem, it wouldnt work on my canopy.

The hole on my canopy is 28"X4".

So I can't have a 36" fixture unless I remove the canopy altogether.

the 2X36W retrofit would work, but $100 it's alot, considering that I
could get a 96W 36" system for that amount...

I am looking for something cheaper.

Thanks anyway for the sugestion.