... recognition 2.LCD Display 3.IP67 4.CE 20a 24v 12v pwm solar regulators As for this product, the details as ... below: 1Nominal voltage12V fixed,24V fixed,12V/24V automatic recognition2Max solar current or load current20A 3Boost voltage14 ... any question, please feel free to ask me. 20a 24v 12v pwm solar regulators