My dimmer melted on a load of 25W

[Dalle1985 16]

Look at the graph i provided earlier on. Flickering is the way a triac dimmer works, when you adjust the dimmer, all you actually do is choose how long the dimmer turns the power off for each frequency period. So it will cause flickering. It shouldn't be as visible is you have filament bulbs as the filament won't cool off completely between pulses.

[hvb83 1]

Dalle, since you seem to be very informed on all this, 2 questions from my side.

I have one dimmer on an electronic transformer on halogen spots. The transformer is able to connect to dimmers. Does this present a possible problem in combination with the Fibaro dimmer modules?

When dimming the light, does 50% mean you will actually use 50% of the energy, as Fibaro calculates it in the HC2? Or is there something happening in the phase that causes the actual energy used to be higher then that?

[Dalle1985 16]

Dalle, since you seem to be very informed on all this, 2 questions from my side.

I have one dimmer on an electronic transformer on halogen spots. The transformer is able to connect to dimmers. Does this present a possible problem in combination with the Fibaro dimmer modules?

When dimming the light, does 50% mean you will actually use 50% of the energy, as Fibaro calculates it in the HC2? Or is there something happening in the phase that causes the actual energy used to be higher then that?

The electronic transformer will be built to function with a dimmer. It has way better harmonics compensation to compensate for power spikes. It doesn't mean that the two interact perfectly, but it will probably work better than an LED bulb which isn't meant for a simple triac dimmer.

As to the second question, I don't know. This is completely down to how the control electronics in the dimmer is setup. It will have some sort of dimmer curve it is working on. So 50% might not be actual 50% load, but just the load that approximates 50% light level (but is actually 75%) consumption.