Connect 4 wire switch to 3 wire box Switch wire neutral light identify box stack seems exchange cream looks color but Dimmer insteon wires
Dimmer Switch (2-Wire) Setup — Insteon
Four wire fan switch
Universal wire harness with led toggle switch
Wires shellySwitch wire led toggle harness universal Dimmer switch (2-wire) setup — insteonUniversal wire harness with led toggle switch.
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