Samlex America Solar SEC-1215UL SEC-UL Series 12V Battery Charger Switch mode technology for high efficiency, lightweight and quiet operation Automatic operation for ALL Lead Acid Batteries Flooded, AGM or Gel Cell Protections: Short circuit, overload, reverse battery connection and over temperature Includes temperature sensor to prevent under/overcharging of battery if temperature varies extensivelyn 2-year warranty / Listed to UL Standard UL-1564, EMI Compliant to FCC Part 15(B), Class B