When ECO Mode is turned on (and the computer is properly connected to the UPS), the UPS can detect whether the attached computer is turned off or is in sleep mode. Activate the ECO outlets by pressing the ECO Mode button on the front of the UPS. It’s easy to use the ECO Mode technology. These outlets are specifically designed to provide energy and cost saving benefits. The Ecologic UPS Series offers energy-conserving ECO Mode functionality and surge protected ECO outlets.