So I have a 150W bulb which is keeping the basking area great. Always 100-108. For 2 months straight it was keeping it in that range. Today I saw it was 112 and I was a little worried that it was a bit too warm. Today the outside temperature was a little warmer for this winter. It was 65-70 outside. Does that play a role on viv temps? Should I maybe reduce to a 100w bulb come spring and summer months?
Yes, the outdoor temperatures do play a role in temperature regulation of the tank.
You could definitely get a little lower wattage to use for the warmer times of the year
so it doesn't get too hot in there for your dragon.
What type of thermometer are you using?
You should set your basking spot temperature concervatively, IMO NOT HOTTER THAN 100F.
This gives you safety margin if you get warmer weather (and your home is NOT airconditioned/climate controlled.
If you have a MVB you can't dim it. But other basking globes are dimmable so a very good investment is a dimming thermostat which has a remote temperature probe , set the max temperature and let the dimming thermostat look after adjusting the wattage/ heat output produced by the basking globe.
The remote temperature probe needs to positioned at the basking spot or as close as is practical to the basking spot.
Yes, the outdoor temperatures do play a role in temperature regulation of the tank.
You could definitely get a little lower wattage to use for the warmer times of the year
so it doesn't get too hot in there for your dragon.
What type of thermometer are you using?