I went to the shop and saw a number of light bulbs and tubes which were marketed towards keeping of herptiles, and were for UV exposure. There were some numbers on them, I can't remember them all but they were like "UVA 1.5, UVB 0.5" etc. (I am making up the numbers here, but you get the picture). What number should I be looking for on these bulbs? I have read many books and articles and not ONE mentions these numbers. They only talk about "Make sure they have UVB or else they get MBD". I need to buy this fast as my pet is already in the house. It has everything already except the UV lamp. I'm taking it out in the sunlight now but I need to get a bulb as I can't do this all the time due to work. I do NOT wish to order through the internet. I have had bad experiences with mail order and I only wish to understand these numbers of UVA and UVB so I can get the best bulb available in my local stores. Please do not recommend a certain bulb or website to order from, but let me know what the numbers should be that I should get. Thanks!