Hello so I am new to this forum (just incase im posting in the wrong thread) but anyway i recently purchased an Iguana and I have a UVB light for it that I use for about 12 hours a day. I also had a blue heat light but it was only 50 watts and the general temperature in my aquarium stayed around 85 degrees. Yesterday i purchased a red night heat light that's 100 watts and i feel like my iguana likes it much better because it provides better heat. My real question is does the bluish yellow heat light emit UVA? and if I was to use my red heat light all day does that only emit heat and no UVA? I just want my Iguana to be healthy but its a pain to switch the hot bulbs every 12 hours... Thanks