Enter E-U740 300W Line Interactive Offline UPS. Enter UPS has a slim design and delivers 4 kW of power. With an efficiency of 90% this unit offers superior value. The unit dimensions are 13x18x32 cm and it weighs 4 kg. The output voltage is 230 V and the voltage is 220 V. The unit has a warranty of 1 year. The number of batteries is 1 and the transfer time is 4 ms.