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Are there 2-wire Z-Wave dimmers for Led-lights?
Posted: Friday 20 November 2015 22:13
by Bikey
Hi,
I'm just starting with Z-Wave (bought a ZWave.Me Z-Wave Plus Stick and a PIR), and I'm now looking for a future proof built-in dimmer for my lamps.
It should be capable of dimming my LED-lamps, and use a 2 wire system (phase and switch-wire to the lamp, as is customary in The Netherlands). It seems that this combination 2-wire and capable of dimming LED's does not exist. Does anybody has experience/tips?
Thanks!
P.s. I don't really like a combination with a "dimmer bypass" which is essentially burning and wasting the energy just saved by using LED's!
Re: Are there 2-wire Z-Wave dimmers for Led-lights?
Posted: Friday 20 November 2015 22:37
by Egregius
Qubino dimmer?
Don't understand the 2 wire thing do.
Re: Are there 2-wire Z-Wave dimmers for Led-lights?
Posted: Friday 20 November 2015 22:56
by Bikey
Egregius wrote:Qubino dimmer?
Don't understand the 2 wire thing do.
The Qubino needs 3 wires: the phase 230 V(brown), 0 V (blue) and the switched wire (black) towards the lamp.
In the Netherlands, all wall-switches or dimmers only use the brown and the black wires, so the blue wire is usually not present in the wall.
So the if you replace an existing dimmer with a Qubino you need to install an addition (0 V blue) wire; not nice!
Re: Are there 2-wire Z-Wave dimmers for Led-lights?
Posted: Friday 20 November 2015 23:06
by jvdz
The issue with a LEDLamp is that it doesn't leak enough current to power the DImmer in case the light is off, hence the need for the bypas (parallel resistor).
Not sure if this really cost more energy as I would think that the energy consumption is determined by the Dimmer, not the bypass resistor in case the light is switched off.
Jos
Re: Are there 2-wire Z-Wave dimmers for Led-lights?
Posted: Saturday 21 November 2015 5:22
by Egregius
Strange that is so much different than Belgium. Here we have in every switch phase and 0.
Re: Are there 2-wire Z-Wave dimmers for Led-lights?
Posted: Saturday 21 November 2015 13:41
by Bikey
jvdz wrote:The issue with a LEDLamp is that it doesn't leak enough current to power the DImmer in case the light is off, hence the need for the bypas (parallel resistor).
Not sure if this really cost more energy as I would think that the energy consumption is determined by the Dimmer, not the bypass resistor in case the light is switched off.
Jos
You have a point. Conversely, if the lamp is on the resistor will consume additional power. I have no idea how much that is to be honest. Anybody an answer to that?
I think I have to choose the Fibaro2 dimmer then, as it also works with 2-wires.