Accurate and smart power management from your solar panels to batteries. The solar charge controller is designed to protect your 12 volt GEL or Flooded battery from being overcharged by solar panels. It also provides protection from reverse battery connection. This controller will display charging current or battery voltage from the LCD meter. WARNING: This product can expose you to chemicals including LEAD, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov. Specs Max Charging Current: 10 Amp Max Solar Cell Power: 150 Watt DC Input Voltage: 16.5 Volt ~ 22 Volt Dimensions WxLxH (cm): 6.6x1.5x7.6 Weight: 0.6000 UPC code: 84367025128 Warranty: 1 year