Eating a bee or two shouldn't be a concern. I'd be worried if she eat a bunch of them. Too much bee venom can be harmful or even dangerous. The greater risk actually is if she keep doing it, one of the bees might eventually sting her. It won't be pretty. I know it first hand...twice. 
As for buying UV lights for your reptile,
http://www.drsfostersmith.com
http://petmountain.com
http://entirelypets.com
are good places to look.
If you want full list of recommendations, check this list of online pet shops.
Zoo Med is a good brand.
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