How to connect a two-key switch instead of a one-key switch without altering the wiring?
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Good evening! I am making repairs, we installed suspended ceilings in the room, set lighting points and a chandelier, but did not take into account the 2nd switch, so the points and the chandelier are turned on at the same time. Please tell me, is there any way to fix this somehow without dismantling the ceiling? (No access to the box). Or can you only remove the ceiling and put the transformer on an alternating switch? Is it possible to put a chandelier with a remote control to turn it off separately from the points?
By the way, it is possible to control two lighting groups using two wires using a pulse relay BIS-404 (FiF Euroavtomatika company).
And yes, of course you can put a chandelier with a remote control. But make sure that it does not turn on itself after turning off the power. Some radio relays “switch” when the power is turned on or off. You will connect it to the existing wiring and switch, which means that the chandelier will work only in conjunction with points ...