Small Temperature Bump

[hollowlaughter]

Hey so, first ball, lot of research beforehand. Though, I have some less-than-ideal components to the setup due to my situation/frugality, like a 20G L glass tank with a screen lid vs a tub. I got a really good deal on the tank the day I bought him, so it came home with him.

So, I have the top foiled off, humidity is sitting regularly at 50-60% mark, hot spot is at 90-95°F/32-35°C range. All good, far as I know. Snake's thermoregulating as needed, wanders around at night sometimes, but stays tucked in his hide securely all day long. He's taken one feed in my care with minimal issues, already (assuming error on my part since he spat it up once but came back for it on the next attempt).

But I'm needing to get the low-end gradient up in his enclosure a bit, the issue being that I don't need it up enough to make investing $50 in a heat lamp to raise the ambient temperature seem worth it, far as I can tell. Wondering if there's any more frugal, yet BP safe options to raise the tank temperature a few degrees as needed, Thinking another UTH on the cold side set at a lower temp, but that'd require buying a second thermostat since my current thermostat can only regulate one UTH at a time. Thanks in advance for any frugal solutions to this issue.

[hollowlaughter]

Currently considering a 100w ceramic bulb/CHE and a lamp casing with a dimmer that'd probably run me about $25 for the set, do y'all think the dimmer will be safe enough without a thermostat as long as I'm keeping an eye on the enclosure temps? It'd be kept on top, and several inches above the screen mesh.