Just be aware of the different technologies available.
Compressor- very low power consumption, can maintain temperature in hot conditions, more expensive. Can usually run off 12 & 240v.
Thermoelectric, can only get down to 15-20 deg below ambient, very power hungry, will flatten a battery in hours, cheap. Usually only 12v unless you buy an adapter.
Absorption, usually “3in1”, I.e. can run on 12/240/gas, mid priced, can’t get as cold as a compressor but colder than thermoelectric. Power hungry on 12v.