Exide 850Va Pure Sinewave Home Ups Inverter With Digital Display.Sizing – Suitable For Pc, Lcd, Led Tv, Fan, Light, Kitchen Mixer, Ro Water Purifier,Etc. (Specification (A)Mains Ac Lower Voltage Limit : 100V+/- 5V In Inverter Mode / 180V+/- 5V In Ups Mode (B)Mains Ac Higher Voltage Limit : 280V+/- 10V In Inverter Mode/ 260V+/- 5V In Ups Mode (C)Output Voltage At No Load : 220V +/-7V Ac (D)Output Wave Form At No Load : Pure Sine Wave (E)Home Ups Output Frequency : 50+/-1.0Hz (F)Nominal Battery Voltage : 12V (G)Low Battery Cut Off : 10.5+/- 0.2 V (H)Change Over Time Mains To Ups And Vice Versa : ≪ 10 Msec (At Mains Low And High Cut.