completely understand only resason I'm using this heater is because i did a ton looking around on the internet and its basically the safest heater to use, every time i searched for recommended plastic heaters the 5-10 gallon zoo med heater always popped up because it only uses like 4 wats and doesn't bring the cage higher then 10 degrees of room temperature which is perfect cuz in the winter time my radiator is always on so his cage should stay at around 75-80 degrees..well i hope i think this is going to be one of the worst winters yet tri-state area for u lol