Product review (4 stars): Drop about $20++/mo. off electric bill: convert chest freezer to run as Fridge
We got this to prepare for the next step: getting a chest freezer to run as a fridge, and only run it off of a solar panel.
We plan to use 2 chest freezers [one as freezer, one as fridge], because those already use drastically less energy than uprights.
Some have been doing this for years.
This external add-on thermostat will NOT void a warranty on the chest freezer unit, because nothing is being rewired; it only allows the unit to run less often, and at fridge temps...so, uses even less than the already thrifty chest freezer.
Running it on house electric, is still saves a nice amount of money, off energy use.
Running the freezer unit off a solar panel during days only, helps prevent ice buildup; less defrosting.
Those experienced in using a chest freezer as a fridge, note condensate puddling in bottom of inside the box.  This can be remedies by using a computer fan to circulate air inside the unit, and/or, allowing drain to naturally drain to outside or floor drain.
Must add more baskets to help organizing foods in it, and help make access easier.
Need airspace on inside floor of the unit, for cold circulation.  It's a learning curve, using chest vs. upright, it's different.