If it is not at the exact distance needed for the bulb type then they are not getting the UVI exposure level needed. With the bulb that comes in the chameleon kits the branch literally needs to be 3 inches below the UVB bulb to have the right level. Too far away and nothing because the UVB drops off almost completely with these bulbs too close and they are in over exposure levels which can cause its own issues over time.
T5HO Linear bulbs are better because the UVB lighting gets push farther down and out then a compact. Also it creates a long path of light rather than just one spot. Allowing for us to then and a spot light for heat to that area. Then the area of basking has both a heat/uvb area.
I would only recommend someone use a compact bulb if they have a solarmeter to check their exact levels. These would not in my opinion be good for an adult cham because they have to be so close to the top of the cage.
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