Check the listing for details. ALLPOWERS 20A Solar Charger Controller Solar Panel Battery Intelligent Regulator. Color: 20A Controller, Condition: Open box. Listed at 10.00 USD. Introducing the Allpowers 20A Solar Charger Controller, the perfect solution for your solar power needs. This intelligent regulator comes equipped with a range of features including over discharge protection, self-consuming, and USB output of 5V/3A. Measuring 150 * 78 * 35mm / 5.9 * 3 * 1.4in, this controller is designed to fit your solar panel battery perfectly. With a rated charge current of 20A and a rated load current of 20A, this controller is capable of handling high wattage of 200-299 W. It also offers over charge protection, over discharge recover, and a floating charge of 13.7V/27.4V. The Allpowers 20A Solar Charger Controller is built to last and withstand extreme temperatures from -35℃-60℃. Invest in this reliable and efficient controller for your solar power supplies.