The Defender range uses Automatic Voltage Regulation (AVR) to minimise the effects of fluctuations in input voltage protecting your valuable equipment from power line disturbances.The stylish LCD display, user replaceable batteries and Australian sockets makes the Defender the complete package at this level. Feature: Stylish and informative LCD display Surge Protection, Best in its Class Excellent microprocessor control guarantees high reliability Australian outlets for UPS and Surge Protection Boost and buck AVR for voltage stabilization User replaceable batteries Silent Operation (No fans included) Auto restart while AC is recovering Off-mode charging Cold start function USB communication with sophisticated NetGuard software FREE download software 2 Year Warranty