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power
A better solar panel regulator circuit for USB power, accepting a wide input voltage range.
Combining functions of poles and incorporating cabinets are good strategies. It would make sense to build a bigger box behind crosswalk signals.
This guy has some good details on how to go about running hybrid AC/DC off grid efficiently.
The reviews seem to be for a night light outlet, and not this product. Great price for two of them, but not sure where to put the second one.
This would be great for a Ryobi adapter, and then I might charge Milwaukee packs from AC/DC with the Ryobi dock, in the camper.