... 12/24V, solar charge controller, pwm,battery charging Technical Information: 12 volt 24 voltRated solar input: 15/20A 15/20A Rated load: 15/10A ... comp.(mV/°C) -30mV -60mVTemperature: -35°C to +55°C Solar Regulator 20A 12/24V, solar charge controller, pwm,battery charging