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2 bedside lights to be installed. Can you turn both on from one switch as you come in the bedroom then turn each one off individually from a switch either side if the bed?
Discuss Can it be done?? in the Lighting Forum area at ElectriciansForums.net
Retractive switches (door switch needs to be double pole) and a couple of relays wired to latch on ? DC relays would be advisable, as AC ones tend to hum.
Or for the "sledgehammer to crack a very small nut" option, I believe DALI would allow you to have three controllers on a bus with two relay (or dimmer) modules ...
Don't need the relay. Connect Line to C, then you take the L1 and L2 across to the two bedside switches where they connect to L1 and L2 there - with C on each being connected to it's lamp. You then get the normal 2-way switching function between the wall switch and each bedside switch.But if you want only one switch by the door then use it to operate an 8 pin relay, that gives you two seperate sets of C, L1, L2 operated by the one switch.
The point of using latching relays and retractive switches is that by switching the wall switch to off it will set both lights to off regardless of whether they were on or off beforehand. Similarly, switching it to on will turn both lights on regardless of whether they were on or off.Only one relay is required with a normal switch, no latching.
Reply to Can it be done?? in the Lighting Forum area at ElectriciansForums.net
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