Green mode bypasses unused electrical components in good power conditions to achieve very high operating efficiency without sacrificing any protection. Energy meter provides actual kilowatt hours of usage for energy conscious users. Intuitive LCD interface provides clear and accurate information with the ability to configure the UPS locally with easy to use navigation keys. Single switched outlet group may be controlled separately from the UPS for discrete reboot of hung devices, sequenced on / off and non-critical load shedding. Pure sine wave output on battery simulates utility power to provide a high degree of compatibility for active PFC (power factor corrected) servers and sensitive electronics. Cold-start capable provides temporary battery power when the utility power is out.