Heated cooler on the bottom (incubator). Shotgun terrarium on top, heated with 100 watt incandescent bulb. Temps in both are a consistent 78 - 80 degrees.
Heaters and incubators cause more problems than good. 78-80 is too high in my exp, and I have a TON. 70 -75 colonization temps, 68-73 fruiting temps. Way more dense and potent fruits, its a fact. Those temps are gonna grow lanky hollow mediocre potency fruits for the most part. Tbh ditch that light all together.... When you get pins get a 6500k daylight bulb and get it as close as you can without raising the temp. Mushrooms respond better to light coming at a side angle than right from above.