ergvgdvgrd·3 anni fa·discussI did something similar, but gave up chasing parasitic electrical losses and didn't want to make the solar panel to power it huge.
ergvgdvgrd·3 anni fa·discussMe too! Was astounded by the price of a standard solution and said to myself, "I can do that cheaper [ assuming my time is worth less than minimum wage.]" Still works, 7 years after install.