iBall Nirantar UPS 621V UPS Have you had enough of frequent power cuts and losing sweat over lost productivity of your work? Do you wish for a powerful and efficient UPS that will deliver on its promise? Your wait is over with the iBall Nirantar UPS 621V UPS. So what sets this one apart from others? For one, it has electrifying recharge speed giving you 33 percent faster recharging. The iBall UPS protects you from any critical data loss and has a wide input voltage range ensuring that your work continues seamlessly in case of any sudden power cuts.