I use a red bulb in addition to UTH. The bulb is a nightmare for humidity, so my solution was to buy a very large water dish and place it directly under the bulb. Works like a charm, and creates a "pond" for my snake rather than a cup. I placed a piece of driftwood over the dish so she can crawl across it without getting wet if she so chooses, and also the extra thing to crawl on means the dish does not take up room the snake could be using to move. She usually sits on the wood and "licks" the water if she explores it. The big dish technique works great, however the bulb will evaporate the water very quickly. I top it off every day and change it completely every few days. Also feel the water with your finger and make sure it doesn't get too hot. My tank is pretty deep, so it just warms the water nicely.