Tortoise Lighting uvb bulbs?

Hi everyone. I was wondering if I can just use the light bulbs that you can buy at target, walmart, safeway, etc. I have a uvb bulb for one of my tortoises and just got another tortoise but I only have one uvb bulb. I have a ton of the bulbs that I buy at the store but there the tiwsty design and when they light up... show more Hi everyone. I was wondering if I can just use the light bulbs that you can buy at target, walmart, safeway, etc. I have a uvb bulb for one of my tortoises and just got another tortoise but I only have one uvb bulb. I have a ton of the bulbs that I buy at the store but there the tiwsty design and when they light up they're white. They look just like the one in my cage. So can I use them just for a little bit until I get some more money?
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