Six programmable, preset timer programs let users set the times during which their equipment receives power from the "Controlled by Timer" outlets, providing surge protection and energy savings. Fail-safe mode disconnects equipment from power supply once the unit has been compromised, ensuring no damaging surges get through after an initial surge event. Special components provide catastrophic event protection, ensuring instantaneous reaction to lightning strikes and wiring faults. Building wiring fault LED indicator informs users of potentially dangerous wiring problems in a wall circuit.Note: This is a non-returnable item.