The compact florescent bulbs only cover a very small area and your chameleon is not going to sit there enough to get good UVB. It also doesn't penetrate into the cage very well. It will do for a few days while you shop for something better. A trip outdoors for 20 minutes a couple times a week will help for now as well. With T5 lighting you can use less D3 supplement safely and it is easier on their liver and it will interfere with Vitamin A levels less.