Also, to be clear, access to full shade is absolutely required for outdoor housing. A chameleon without access to shade could reach a lethal body temperature on a 75 F day. The suns rays easily heat objects (including chameleons) to much high temperatures than ambient. The montane animals use this to their advantage to regularly reach and maintain body temperatures in the mid to upper 80's F even though the ambient temperature in their habitat may be in the 60-70's F.