The idle current drain from computers and home entertainment products costs money on your energy bills, but the Smart Strip's advanced circuitry actually monitors the current flow to your computer and can determine if it is on, off or asleep and turns off the peripherals when not in use. The 7-outlet surge protector uses three diagnostic indicators - power, switched outlets, and ground and surge status - and works with computer systems, home entertainment units, workshops and more. The Smart Strip can save up to 72% of the energy used by your computer system, and is environmentally friendly by reducing greenhouse gases. Power strip has 1,225 joules of 3-way 130-volt protection, plus a 6' heavy duty power cord with a space saver plug. UL listed.