stand alone home solar power system use 20A PMW cheap solar regulator

Basic Info.Model NO.SC1220After-sales Service2 yearsWarranty2 yearsConditionNewCertificationISO, CEApplicationSolar System Controller, Charger Controller, Solar Working StationRated Voltage 12V System voltage12/24Charge current 20A Discharge current 20A Max solar inputLesser than 50VFloat Charge13.7VDischarges stop10.7Battery typeb01 Sealed/ b02 GelDischarge reconnect12.6VConstant Charging voltage3.6V*4/*5USB Output5V/12ATrademarkCarspaSpecification154gOriginChinaProduct DescriptionTechnical Parameter: Model121012201230 Sytem Voltage12/24v12/24v12/24v Charge Current10A20A30A Discharge Current10A20A30A Max Solar Input50V50V50V Battery Typeb01 Sealedb02 GELb03 Floodb01 Sealedb02 GELb03 Floodb01 Sealedb02 GELb03 Flood Equalization14.4V14.4V 14.2V14.2V Battery typeb04 Iron lithium 4 strands b05 Iron lithium 5 strandsb06 lithium ion 3 strandsb07 lithium ion 4 strandsSame as aboveSame as above Operating Temperature-35 to +60 ºC-35 to +60 ºC-35 to +60ºC