
They have a standard starting distance (28mm OC) which I would have really liked at 35mm to accommodate almost all wall warts placed next to each other. Best of all, the main power switch that controls all outlets is lighted (an old-fashioned neon light that will soon flash and then stop working), AND there's a red LED to indicate main power (and it will last for years to come). ).BUT the mounting slots are useless: (1) they are too shallow to accommodate the screw head, and (2) they are bricked up at the end of the (too short) slot so the screw head (if it otherwise fits) prevents the shaft slides through the entire groove. See photo. If you want to install this you will need to use glue or strong double sided tape. This seller is very friendly to buyer so I'm sure they will fix it. But the two products I've bought from them so far lose their usability over time, although they have good physical design.

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