Online UPS offers zero switchover time from mains supply to UPS supply mode, meaning that continuous power supply is available to the equipment. Online UPS, unlike line interactive UPS, is always supplying from its battery bank, thus ensuring there's no switchover break which can affect sensitive equipment. The Online UPS is therefore safer for expensive, sensitive equipment. The Blue Gate Online UPS range has zero switching time, making them ideal for sensitive equipment like servers, networking devices, and similar equipment that will not tolerate any power switchover time. It is equipped with advanced voltage compensation technology, advanced frequency technology and advanced PFC technology. You get undistorted standard sine wave from a wide range of input variables, as a result.