I have a 4 foot fixture hung ready to go and i find out the nighttime bulbs i always see at the store do not come in 4 foot bulbs like everything else.

so i just want a bulb that isn't going to bother the animals, specfically pythons and breaded dragons, at night, its not going to be on all the time, just when i walk in the room id like to hit a switch and be able to check on em

i thought mayb blacklight, but i don't know if that would bother them or not, can they see in that wave length? do i have any other options?