I'm no expert as my oldest frog is maybe 7-8 months old now, but after I stuck some metal clamp lamps with 40 watt incandescent bulbs in them 2/3 of my gabf spend most of their days sitting right under them. The room that I keep them in I have a space heater in and I keep it 80 degrees and with an IR temp gun it sits about 85 under those lights. Bought a Mist King system too so they get sprayed a few times a day. Warm, humid = happy frogs.