I've had a non-pro Belkin 8 way surge protector for over 10 years now, I thought this “pro” version would be a good upgrade to protect my new tv and av receiver, however, it keeps shutting down and restarting itself, and when it does work it emits an annoyingly loud click every 10 minutes. I've had the house fully tested by an electrician, and the house has an almost brand new power box, yet the surge protector still does this. I reverted back to the lesser model 10 year old belkin protector and no issues with that.