Smart Surge Strip reduces standby power waste and energy cost while providing 1080-Joule surge protection with six outlets. The master outlet senses electric current changes of the connected device and automatically turns the energy saver outlets on or off. The energy-saver outlets only turn on when you turn on the master outlet device and will be turned off when the master outlet device is turned off, or goes into standby mode. UL listed and cUL approved design also includes power filtration for cleaner power supply, phone and network protection, 120-volt AC compatibility, 1800 watts in output, 15 amp circuit breaker, 6' cord and EMI/ RFI noise filter.