Solar powered chicken water de-iceing?

2025-01-23

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Since I forgot to add it to this version and people have asked: the bulbs I used are the automotive kind like you would use for a tail light that draw about 12 watts at 12v. There are 4 wired together in series. The solar panel outputs 40 volts in full sun with the circuit open with a max power of 200Watts. The power draw of the actual device isn't constant but I calculated, using my famously bad math skills, that at most it would be about 30 watts.