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New solar, sophisticated 30A controller for regulating current from solar panel to battery. The panels can provide current up to 100V. The controller converts it with automatic recognition of 12/24/36/48V, depending on the installed batteries in the system. LCD screen, with four 5V USB chargers. Short circuit protection, open circuit protection, overload protection. Intelligent charging and perfect electronic protection. Simple button control. Adjustable charge-discharge control parameters.