With a glass set up though, I would recommend a UTH that is controlled with a thermostat as heat lamps seem to really play havoc with humidity. This is also useful due to glass cages not being the best for holding temps and humidity. I have found a combo of a CHE and a UTH seems to work best.
Here is my glass set up. My UTH is on the same side as my CHE. This gives me a perfect hot spot and ambient temps.
*Edit: Picture shows a IR bulb. I have since replaced the red bulb with a CHE.
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