Well i just came up with an idea to convert a 4 inch fexwatt to a 8 inch. Since i use my rack for hatchlings and adults i only wanted to go with 4 inch because the others would take up the whole tub for the hatclings. Well i folded the flexwatt at 2 90 degree angles to have one piece go side by side. (ill post some pics) well i wired it, attached it to the rack and plugged in. BOOM!!

I wired it to the same sides. Thinking one on left and one on right well the lines go (+--+) Not (+-+-). Well off to wally world to get some new fuses.