Kintrex SPC0601 7 Amp 100 Watt 12 Volt Solar Power Charge Controller With Digital LED Display Prevents Overcharging of 12-Volt Batteries. Handles up to 7 Amps of Solar Array Current and Up to 100 Watts of Solar Power. LEDs Indicate Status of Solar Panels and Battery. Optional Load Connection to Manage Discharge of Battery. High Efficiency. Maintenance Free.