Sea

SOLPERK 20W

It maintains a charge in the sun. It is not a fast charger.

The good Keeps a sitting 12V battery topped up in the sun, and the kit is complete.
The bad It maintains. It does not fast-charge.
The ugly The controller, more often than the panel, dies within about a year.

For Get this if a 12V battery sits on an RV, boat, or tractor and you only need to maintain it, not fast-charge it.

Bends onto a deck.

For Get this if you need a panel that bends onto a deck.

For Get this for an open deck, not a spot under a sailboat boom.

A fuel gauge for the house bank.

For Get this if you want a fuel gauge for the house bank.

Phone app for a boat bank.

For Get this if you want a phone app for a boat bank.

Runs a deck panel back to the controller.

For Get this if you need to run a deck panel back to the controller.