Expectations for -15 Celcius?

  • Hi

    We have about 15 Shelly1 (mix of V1, V2 and V3) operating campground lights

    Using Tasmota, but I think this is not relevant for this question.

    We want to turn off the entire camping circuit lights for the winter, but it can get -15, sometimes even -20 celcius at night.

    I wonder if there is any expectations or knowledge about this. Will the solder joints or electrolytic capacitors suffer?

    Obviously it would it be better keeping them powered, turning off the lights by software, using the standby current of maybe 1W to keep the device slight above surroundings. I've real about theoratical "tin-pest" on modern lead-free. And I guess electrolyte can eventually freeze, though with all the checmicals in there, its probably way lower then 0 celcius.

    But I really rather turn off the entire circuit, anyone has any actual experience in this, for either Shelly specific, or on modern lead-free solder joints or electrolytic capacitors?

    Thanks