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L1, 2 and L3 versus COMM

Hi - I'm replacing like for like light switches - new and old have Comm, L1 & L2. However, I've just taken another old one down with Red in L1, Black in L2 and a space for L3, but no Comm - please confirm where I should wire Red & Black in the new Comm, L1 & L2 spaces, thanks

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What kind of light switch are you replacing??? assuming house light switch???
one way or two way switch??
I have not come across the type of switch before.
L1, L2 is just label as line 1 and line 2, comm is usually refer to common (ground wire-white).
is the red wire-hot???

Posted on Oct 23, 2008

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