I bought a used kit that came with a UVB lamp. Since I don't know how long it's been used, I bought a new one. But I also have a BTS which technically doesn't need UVB light as much as a bearded dragon and was thinking about using this old one for him. My question is: what happens to the UVB bulbs with time? They stopped producing UVB or do they keep producing but lower amounts?
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