model: GS 850 Va eco/ 480winput voltage : 140vac / 290vacoutput voltage : 220vac / 230 vac ±10%battery : 12V/9Ahnumber battery: 1Alarms: UPS On , Low Battery Overload , overcharge protectionFeatures :Offline "A wide range of applicable voltageLED to displayBoost and buck AVR for voltage stabilizationAuto restart while AC is recoveringGenerator compatibleExcellent microprocessor control guarantees high reliabilityOff-mode chargingCold start functionApplication range: Suitable for PC, router, POS, communication and industrial control products in scientific research, transportation,information, and education industries"