Petco Text Logo
Petco Pet Logo

What UVB light wattage is right for my 20-gallon bearded dragon tank?

Updated On September 23rd, 2025

I have a 20 gallon tank for my bearded dragon and I just need to know how many watts of UVB do I need

1 Answer

Most Helpful Answer

Image profile

Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on June 6th, 2017

50-watt spot/heat bulb is usually sufficient.Put a 10 to 12% UVb fluorescent tube up to one half the length of the vivarium and fix it as far into the hot end as possible Please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored