Join Date: Oct 2011
Location: Saskatoon, SK, Canada
Google up AH supply. They sell retro fits, in pretty much most sizes. Lots of wattage options available too.
Also, you might want to look into other things as being the problem. 1.25WPG (*ducks as the PAR guys throw stones*) isn't all that bad. There are plenty of people on this forum who have really good success with extremely low light. Perhaps you have a nutrient problem, or some such. What kind of water are you using? RO? Any ferts going on in there?
/I know this is a tangent to your original question, but I'm just trying to save you some cash.