TIMER & SWITCH OUTLETS- 4 outlets are controlled simultaneously by the timer on one side to schedule your connected devices, 4 permanently ON/OFF outlets on left side to meet your usual needs (Note: The program controls ALL 4 outlets on the timer side) SAVE MONEY & POWER Timers for electrical outlets eliminates standby power by disconnecting the power from the devices in the 4 timed outlets, saving money on your energy bill USER FRIENDLY- Mounting holes on the back make it easy to be mounted to the wall; rotating covers on every outlet protect them from dust/water/oil when not in use; 6 ft long enough extension SJT cord expands its scope of application; built-in backup battery makes sure life length of themechanical timer and keep its settings when in power outage WIDE APPLICATION- Multiple devices run always or as scheduled, electric timer for outlet is ideal for lamps, appliances, electronics and seasonal lighting, heat mat grow light, aquarium fish, turtle tank te