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UK 2-wire on/off light switch - which module?


t-fibaro
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Hello

 

I am looking to automate some light switches and was initially intending to use a Fibaro FGS-222 but on reading about them found that this was not possible due to 3-wire requirement, mine are 2-wire. I have already installed and got working a couple of FGD-212 Dimmer 2 modules but wasn't thinking to use those (dimmer not really required), but they are 2-wire capable, so it does appear to be an option. Question is, is this the best/only option for just switching lights on/off. One advantage of the FGD-212 is that I will also get power metering as well, so not all bad if I go down this route.

 

Thoughts appreciated.

 

Regards

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I'd be interested on knowing how you got the 212 working in the UK.

 

Im also looking to start adding zwave capability to all my switches (2-wire) and have a FGD-212 currently hooked up to a test bed.  My testing so far with a single 60W bulb, is that when wired up in a 2 wire system, the light comes on for a second then goes off.  regardless of whether switched by the toggle, or by the smartthings App.  See topic on this here:

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When wired in a three wire setup, no problems appear to be present.

 

What system are you using to control your lights - Smartthings or something else?

 

Did you have to set any specific parameters when setting up for a 2 wire system?

 

Im keen to get the house lighting configured, but at present, its a no go for me after my first tests.  I tried checking a couple of ceiling roses for permanent power in that location so I could wire in ceiling with a 3 wire setup, but sadly doe to the layout and type of the wiring, mine is junction box setup, and the boxes for the downstairs lights are now hideen somewhere in the ceiling void.  Upstairs at a push I could go around the loft finding the boxes and setting up the devices in a 3 wire configuration.

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  • The only problem I have had with the FGD-212 was flashing at low settings, I fitted a Bypass 2 but this didn't seem to help until I did

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    . A second one didn't appear to suffer in the same way. Absolutely no idea why, both are controlling two bulbs which are identical and both have the same make of momentary switch controlling them. Other to that, I just followed the wiring diagrams supplied with the units.

     

    System wise, I have a HC2.

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