Eliminates Stand-by Power Loss - Save Energy and Money Most electronic devices draw power when idle, in standby mode or even when turned off. A Department of Energy study showed that 15% of the energy an average household uses is for standby current. When the GreenGenius Smart Surge Protector is used, it automatically turns off the power to idle devices, eliminating electricity usage and saving you money. How it Works Plug the control device, such as a computer, into the Control Outlet. Plug your printer, monitor and any device used with the computer into the Switched Outlets. Always-on devices, such as a clock or a telephone plug into the Always-On Outlets. A sensor constantly monitors the flow of electricity to the Control Outlet. When the computer is turned off or goes into sleep mode, the surge protector automatically shuts off the power to the Switched Outlets. When the computer is turned on or is wakened, the surge protector automatically turns on the power to the Switched Outlets.