We installed a pair of Unisolar 64W panels on the rear davits of our sailboat. Installation was straight forward including the voltage regulator and display.
The light weight panels in the aluminum frame are ideal for this type of application.

The panels worked right away. The max they have delivered to date is 6.9 amp/hrs in the mid-Atlantic region this fall. We expect to gain 9-10 amp/hrs in lower latitiudes this winter.

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