KOMAES 20A 12V 24V Solar Charge Controller Intelligent Regulator Port Display with User Manual High quality, efficient and reliable Solar Power Regulators Full self protection: overload,short circuit,reverse connection,over charging and over discharging etc. Reverse polarity protection : Any combination of solar module and battery Easy to use:Adjustable loading timer ,adjustable light on + delay off timer,12V and 24V Bettery auto sensing. Comes with a solar charge controller user manual High quality, efficient and reliable Solar Power Regulators Full self protection: overload,short circuit,reverse connection,over charging and over discharging etc. Reverse polarity protection : Any combination of solar module and battery Easy to use:Adjustable loading timer ,adjustable light on + delay off timer,12V and 24V Bettery auto sensing. Comes with a solar charge controller user manual