Category: Lighting
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The three Shelly Gen3 dimmers do not compete: which one is yours
Each speaks a different language to the light fitting, so the choice is almost never about budget: it is about what your installation accepts.
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How a light is dimmed: phase cut, 0-10 V, DALI and PWM
You do not choose the dimming technology: the light fitting imposes it. Four ways to dim a light, what each one manipulates, and how to tell which is yours.
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BLU Remote Control ZB with a Shelly Plus RGBW PM: what works and what does not
The buttons yes, through scenes. The brightness wheel and channel switching no, and the reason is that the RGBW PM is a Plus device.
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BLU Remote Control ZB with a Shelly Dimmer Gen3: dimming with your thumb
A physical wheel for brightness, no phone and no scenes. But there is one step nearly everyone skips, and it is the one that makes it work.
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Synchronising several Shelly Dimmer Gen3
Local actions, app groups or cloud scenes: only one is instant and works without internet. And why same model, same load is not fussiness.
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Shelly DALI Dimmer: what it can and cannot do
It works in broadcast mode: every driver as one group. It powers about 5 drivers and does not control colour temperature. Worth knowing beforehand.
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Shelly Dimmer 0/1-10V: it dims drivers, not bulbs, and that is why it has a relay
Two circuits instead of one: the relay carries 230 V to the driver and Dim+/Dim− carry the command. What you need for it to work, and why without the relay the light never goes off.