Features: 1) Automatic operation 2) Auto stop when charging full charging current is steered to Features: 1) Automatic operation 2) Auto stop when charging full charging current is steered to the most depleted battery electronic limiting of maximum voltage 3) Voltage: 12V, 24V, 48V 4) Current: 5A, 10A, 15A, 20A, 30A Solar Regulator (solar Charge Controller)