Some but not all slow to develop chameleons have intestinal parasites. You might try to find a vet that is willing to run a fecal for you. Some may be willing to run one without an exam first but none will prescribe dewormers without an exam.
I found this light fixture the other day on amazon. Its a nice price for a dual fixture it comes with 2 6500K bulbs but if you pull one out and replace it with a good UBV bulb you are set. Except for basking.
https://www.amazon.com/6500K-Aquari...&psc=1&refRID=C4HPY4JVG5F0RTN0STJ4&pldnSite=1
I found this light fixture the other day on amazon. Its a nice price for a dual fixture it comes with 2 6500K bulbs but if you pull one out and replace it with a good UBV bulb you are set. Except for basking.
https://www.amazon.com/6500K-Aquari...&psc=1&refRID=C4HPY4JVG5F0RTN0STJ4&pldnSite=1