Three out of four outlets worked as expected. When I tried to put something in the fourth it was very difficult and I think something might have broken inside. I have no power at any outlet. I checked with an extension cord that the switch lights up indicating the power is always on. I could shake the cord and/or tap the outlet and the power LED on the bar would flicker for a moment. Again, I think something is broken in the socket. The LED on the outlet was constantly on, but I didn't check the USB ports. Three of them worked fine, including one that installed in the same place I tried the faulty one, so I don't think the installation was the problem.