Well switch to LED then

. Get a boat load of LED light for the plants and an Arcadia Deep Heat projector for the Temps

. Get with the Future, Today

.
Home Depot, Halogen Floods are still not LED, and like 50ws is probably enough the halogens are HOT.
They can sense and reflect infrared light too btw pretty cool.
https://www.jstor.org/stable/2388120?seq=1#page_scan_tab_contents 
.
They cannot reflect ambient air temp. So they can better self regulate basking, as they would in the wild, if provided Infared heat instead of waste heat from a light.
The point of basking, is infrared heat. The sun heats things with Infared rays, which heat the air by heating surfaces and reflections.
Normal bulbs still provide some Infared (not much), but alot of the heat they exhibit is waste from making light.
When a Cham is making themselves dark, they are trying to absorb Infared, while going light or green, they are trying to lessen the infrared they are receiving.
Another fun fact, in case anyone is actually reading my crazy talk. Plants also appreciate Infared light. It gives them Cues it's time to wake up and start photosynthesis.
However OP or any other noob that reads this. They still need bright lights. If you want to do a Quad T5HO and a deep heat that's fine. Or a some JD spots and a Deep Heat, also fine. Chameleons still need light to know to bask, not just infrared (although cued from both) so you need a brightly lit Viv, to use a Deep Heat.
However if you have that, IMO and Arcadia's and quite a few experts I have spoken with about it, Deep Heat is King.
With a reliable stat, if absolutely needed (like your house gets really cold some nights) it can double as night heat.