Here l am very glad to inform you all about the defect of zebronics ups u725 inverter to make you all escape from which I am trapped. This inverter cant perform it function as the consumers want. It became complaint and stop working in a short age of one year. When I asked my friend who is an technician he replied me not to buy this brand. It always become complaint. We cant depend it. Because when it starts problem it only works only for about three hours. I become ashame when a party was going on in my house. I thought that inverter is capable for electricity for a few hours. But the function become disorder. So be carefull about the brand we are buying.