
I needed them to build my own custom PLC test block. These are red and green buttons on the bottom tier with 5 pins on the blue back below. I like this as both connections for the internal LED are separate from each switching mechanism and the switch has both normally open and normally closed contact options. For a PLC test block you can have 2 different switch inputs and 1 LED output for that one part. The bottom line is that I control the light separately from the switch via a PLC. The switch is good quality, easy to solder and has a nice 4 arc mounting washer inside that bites into the smooth plastic box to prevent rotation in the round hole. Overall it's a good design and easy to install by hand. I would recommend them.

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