Review on Ramsond SunShield Charge Controller Regulator by Kevin Bigelow

These are very good controllers! I've bought others that had more features and they let me down! They just do their job and are very durable! (try to keep them dry). I use them for my boat batteries when the boat is on a trailer. I have a 10 watt panel connected to my main battery and a 5 watt panel connected to my backup. They are always fully charged when I launch the boat.