Protect your equipment from electrical spikes by using the Furman SS-6B-PRO 6-Outlet Surge Protector. Featuring a solid steel construction with a 15' cable, built-in circuit breaker, an illuminated on/off switch for low-light environments, this 6-outlet power block is designed to dissipate up to 540 joules during a power surge. The SS-6B-PRO is equipped with Extreme Voltage Shutdown technology, which cuts off the power when the voltage spikes to 140V or drops 95V. The surge protector automatically turns back on once the power is stabilized. Other features include RFI/EMI filtration and diagnostic lights that let you know the SS-6B-PRO is working properly.