Minority2
Well-Known Member
The bulb wasn't barely breaking 90 with the damp substrate and I was using a basking rock. I switched to a 150 still using the rock and now the area stays around 100. I also have dimmer switches on both lamps. Once I switch substrates I'm going to put enough in there for at least 6" and I think I could switch back to the 65?
There may be several reasons as to why the 65 watt bulb is not giving you a basking temperature of 95-100F.
1. The distance between your lighting fixture and substrate is one.
2. Another can be the quality of the instrument you're using to gauge these temperatures.
3. How sealed is your enclosure? The last picture looks like you only placed aluminum foil over the mesh. Many holes and gaps are still exposed. Tape down the foil with either regular duct tape or heat resistant tape. That should improve the insulation of the enclosure.
4. The temperature surrounding the outside of the enclosure can also affect how hot or cold the enclosure can become throughout the day.
I suggest making sure the enclosure is sufficiently sealed first before testing bulbs. It also takes a while for each bulb to reach their maximum heat output. If you're worried about any lack of holes, you can make one or two tiny ones. Some lamp fixtures also come with holes drilled into it. Many people don't see this being necessary because opening and closing an enclosure a few times a day will usually provide enough air for them.
What are the dimensions of your current enclosure?