They both are going to dry it out. How much will depend on what watt you are using and how the cage is setup.
I prefer a CHE over a bulb. I have a CHE that I was using in a previous set up that was on 365 days a year 24/7. It had been going or over 2 years when I unplugged it. If you use them correctly they are far cheaper than bulbs in the long run.
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