When I first started reading the threads here... I was like what this is totally different from what I was told... there is a lot of miss information- the people on the forum follow research proven methods of husbandry also chameleon academy is another great accurate site with everything you need to know about chameleons....I'm getting a little confused. I'm heard contradicting recommendations concerning the vitamins/Calcium/D3 so now I don't know who to trust.
Concerning your question about the bulb, its a compact screw. Reptisun UVB 5.0
sorry for your loss