Microtek Inverter Ups Sebz 900 Va Sinewave Inverter Technical specifications: Input voltage (standard range) (narrow range): 100v-300v 180v-260v output voltage on mains mode: Same as input output voltage on UPS mode: 210v ± 10 percent output frequency on UPS mode: 50 HZ ± 0.1 HZ Switching from mains to UPS and from UPS to mains: Automatic output waveform on mains mode: Same as input output waveform on UPS mode: Pure sine wave battery charging current: Constant charging approx. 10 percent of the rated battery current in ah charger: Power factor controlled boost technology efficiency: >80 percent UPS overload/UPS short circuit: 110 percent/300 percent UPS transfer time: <15 Ms. Technology: Digital signal controller (DSC) based intelligent control design auto reset feature: Yes note: Because of a policy of continuous product improvement.