Iguana questions?

for my green iguana I have 3 lights. one is a red light (what i think is a heat light cause I leave it on constantly) then another is the long uvb light and the other is the day light (the day and uvb light I do 12hrs in the day on then 12hrs off at night) am i doing this right?? Is the red really a heat light and is the other really a day light?? also my day light blowed (not the long uvb light but the other day light) when i went to get another it said basking light is that the same thing?????