I used a plain small aquarium lighting system in mine. The bulb is a 15 watt clear one. They usually are only active at night when the lights are out, so climbing on the light fixture isn't a problem. Just make sure it's secure, because they will use it as a jungle gym.
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3.2~Cornsnakes
3.4.2~Green tree python
3.3.1~ATB
1.1~Sibon Nebulatus
Dogs, cats, horses....
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