A little bit of off topic, I present you few pictures to show how I solved cooling and housing on my KAI4022 camera.
Back side of housing is slim but efficient CPU cooler with copper insert. I also used DIY 2-staged peltier module, sandwiched between cooler and aluminium cold finger. Cold finger is screwed to the cooler with 4 plastic M3 screws. Unfortunately, I somehow lost pictures of that detail...
That camera need approx. 3.2 amps (on 12V supply) for cooling, but can easily reach 48C below ambient temperature
So I can image at -20C sensor temperature through all year.