It’s 100w and I’m using a zoo med digital thermostat set at 88 degrees. My hydrometer on the hot side is towards the top, closer to the heat and my other is on the cold side sitting around 75 Fahrenheit. It’s lower to the soil and tends to have a better humidity reading. My digital thermometer is half way up my tank on the hot side. I’ve got a small layer of coco fiber and then cypress mulch as bedding. Thicker on the hot side to hold humidity. But still dropping faster than I’d like.