... Input voltage: 220V±10% 2) Charging modes: manual switching for GCA 3) Frequency: 50Hz-60Hz GCA 6- ... the charging of batteries in various motor vehicles, tractors, diesel engine sets, shipping generator/electric sets, miners' lamps, and motorcycles ... for safety lighting Parameters:Input voltage: 220V±10%Charging modes: manual switching for GCAFrequency: 50Hz -60HzCharging voltage: 6V, 12V, 24V ...