... .LCD Display 3.IP67 4.CE 20a 24v 12v solar regulator As for this product, the details as below: 1Nominal voltage12V ... : Lead-acid,gel5.Protection:over voltage,over current,over temperature,low voltage,short circuit,reverse polarity6.Two smarts may be work ... , please feel free to ask me. 20a 24v 12v solar regulator