I purchased 3 panels for our sailboat prior to sailing from San Diego, CA to Cabo San Lucas, Mexico. Several electronic components failed in the harsh conditions at sea but our solar charging system worked perfectly. The panels are all mounted horizontally because it is not practical to tilt them towards the sun on a moving boat. We were seeing about .5 amps per panel within 2 hours of sunrise/sunset and the panels peaked around 6 amps each at high noon with full sun. Keep in mind that this trip was in early November with suboptimal panel angle. So over all I was very happy with the panels’ performance. The only minor complaint I have would be the pre chosen knockout hole in the electrical box. It was on one side and I would have preferred to knock out the hole that best lined up with the direction I was running the wire and not have to seal up the unused, pre-chosen knockout hole. So I don’t have experience with solar panels of another manufacture but I would not hesitate to highly recommend the Kyocera panels.

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