Reptile UVB Distance Guide
How far the UVB bulb should sit from your reptile's basking spot — critical for calcium metabolism.
Basking distance from bulb
15 in
measure from bulb surface to reptile's back
Not medical advice. This tool provides general guidance based on common veterinary formulas. Always consult your veterinarian for medical decisions about your pet.
Examples
- Bearded dragon, T5 10.012–15 in through mesh
- Leopard gecko, T5 5.010–12 in through mesh