"Scott" wrote in message
...
On Fri, 08 Mar 2019 21:38:56 +0000, T i m wrote:

On Fri, 08 Mar 2019 16:14:28 +0000, Scott
wrote:
snip

So ... if you don't have a freezer compartment, you aren't likely to
use the lamp as some form of heater?

No, I understood that the compressor stopped running below the minimum
ambient temperature affecting the whole operation of the fridge, just
that the freezer compartment was the most conspicuous example.

PS see https://howtomendit.com/answers.php?id=99803

And does this still relate to just fridges, or fridge freezers (with a
single thermostat / compressor)?

I honestly don't know. Mine is a fridge freezer but the light is in
the fridge compartment. I assume the same principle applies to
fridges and freezers as both are doing the same job.

We need someone who knows about thermodynamics. Anyone out there?

Its got nothing to do with thermodynamics. Its just that with a very low
room temp, there isnt enough heat leaking in past the insulation to see
the compressor keep being needed. With the light on, the heat from
that eventually sees the thermostat decide to turn the compressor on
because the fridge internal temp has got above the room temp.
With no separate thermostat for freezer section.