Specification :

500va 650va 1000va Automatic buck and boost AVR function, wide input voltage 145-280VAC Technical of PWM adjustment and advanced MOSFET power components, ensures stable performance BYPASS outlet available, user can connect equipment of heavy load without damaging UPS Advanced automatic constant charging circuit, prolongs battery life Battery low voltage, overload & short circuit protection Lead-Acid, maintenance free battery inside, provides strong power to users RS232 & RJ45 Fax/ Modem protection ( V-650/ V-1050)