Infra red bulb or moonlight bulb?

[George1994]

IR isn't visible to humans either, it falls just off the red side of our visible spectrum.

The moonlight bulb is trying to emulate the light the moon reflects at night time, not too bright so that it will disturb the snakes day/night pattern.

[Keshi]

Which one do you think is best to be left on 24/7? As I now have correct temps operating, I don't want to adjust the thermostat so I have a bulb running all the time but a moonlight bulb can get pretty bright at night!