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Old 19-02-2018, 04:13 PM   #189
Junior Member
Join Date: Feb 2012
Posts: 54
Got them from aliexpress.
My 2 way switches have a and b. This is confusing as I only have 3 wires. Seems I'm short of one.

The reviews online shows post about the wiring portion of the switch being round and having a com connection instead of a and b.. which seems to be the one that I need....

But the one I have is a square back connection...
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