I use one of those for my headless dedicated Pi4B website server plus UPS controller. Admittedly, that's a simple load, but my Pi never gets over 42 degrees C,

I use one of those for my headless dedicated Pi4B website server plus UPS controller. Admittedly, that's a simple load, but my Pi never gets over 42 degrees C, in a tropical area, averaging around 30 degrees C.