I have a native lizard (long long story) who likes to take cover during the hot periods of the day when it's over 90F. Today it's 105F.
All the tank heaters are off, and the UVB fluorescent tube is disconnected. No house lighting or cooking during the hottest hours, no UVB, no hab light. The large tank still is almost too warm. Adding UVB makes it way too hot, even though I use a T5 tube with the ballast relocated to the wall outside the tank. The tube even without the ballast is just plain too warm.
If I were to make a 1/4 inch galvanized mesh temporary location cage with the UVB tube in it, the lizard still could not lay close enough to the tube to get his UVB.
You might say, cool the inside house air. Normal people do that, and it would solve the problem. But I don't have a whole-house AC, and I can't afford to aim my window AC at the cage 10 to 12 hours/day, or even to aim it anywhere for that number of hours. I stay well cool enough from 9;30 AM to 5 pm by sitting and standing in the breeze of four 20 inch house fans. Hot spells immobilize me.
Hmmm...maybe there IS a solution. Mist the tank substrate with tiny droplets while a fan blows air through the tank. Hmmmmm.....I'd have to buy a cool-mist humidifier and find a small fan at a garage sale.
Theoretically, I suppose I could use the 1/4 inch tube that goes to the ice maker, extend it to the tank and install a tiny fogging emitter to it's end. But there is a danger of accidental flooding if it failed while I was away, causing a lot of water damage and my eviction. Hmmm...I'm going to think that one through and get prices, and do experiments. The water can be shut on and off with a common, cheap electrical on-off water valve that's in every washing machine and dishwasher. It and the fan could be actuated at the same time by the thermostat that is already in place.
I advise all of you from the age of twenty, or any age, to save money every payday even if it's only $10, do not get involved with cocaine or meth (money-melters), put in a compound interest bearing account, and do not put yourself at the sole mercy of the purchasing power of your inflated Social Security check when you have to retire. Be a real man, be a great woman, and take care of yourself.
I'm in that fix now. I can't go out and do small jobs for extra money in 100F heat.