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Is there any regular light bulbs that have UVB rays? If so, how can you tell?

Thank you!

Since UVB rays might be harmful, no regular bulbs emit it. In fact, most windows and bulbs are treated to prevent transmission. Your turtle also needs a specific range on the UVB spectrum, so only use a bulb made for reptiles.

The only way to be certain is to have a UVB meter, like a SolorMeter 6.2 but they cost about $200 new. If you want to have a UVB bulb tested, I heard that there will be people @ reptile shows who might test it for you. It only takes a couple of seconds to measure.