Well, in general cooling something down is much more complicated than heating it up.
For one you need a sophisticated reverse heat engine, for the other a piece of wire with high enough resistance.
For one you need a sophisticated reverse heat engine, for the other a piece of wire with high enough resistance.
This is a very obtuse way of saying “refrigerator”, which is a type of heat pump.. a technology over a hundred years old. The simplest refrigerators/heat pumps are pretty simple — https://en.m.wikipedia.org/wiki/Absorption_refrigerator
Cooling for active outdoor technology has extremely variable outside temperatures (basically anything from -20 to 60 °C, or more if you take direct sunshine into account) and a constant generation of heat to be taken away.
Like mobile base stations of course have AC units and some amateur astronomers use peltier cooled sensors, but I would hardly call these mass produced consumer items.