Applied load and the Dimmer 2 itself may be damaged if the applied load is inconsistent with the technical specifications!

When connecting FIBARO Dimmer 2 act in accordance with the following rules:

  • Do not connect loads greater or less than those recommended
  • Do not connect different types of light sources simultaneously
  • Do not connect the power supply without a load
  • Do not connect more than one transformer with Dimmer 2 output
  • When using magnetic transformer load it with 50% of its nominal power at minimum
  • Minimize number of electronic transformers in a circuit, noises caused by them in electrical grids may affect Dimmer’s operation

FIBARO Dimmer 2 uses different operating modes to control following types of loads:

  • „Trailing edge” for resistive loads (R)
  • „Trailing edge” for resistive-capacitive loads (RC)
  • „Leading edge” for resistive-inductive loads (RL)

Some types of the LED bulbs and compact fluorescent lamps are designed to work in leading edge operating mode.

As a dimmer it operates under the following loads:

  • 230V operated conventional incandescent and halogen light sources
  • 12V operated ELV halogen lamps and dimmable LED bulbs (with electronic transformers)
  • 12V operated MLV halogen lamps (with ferromagnetic transformers)
  • dimmable LED bulbs
  • dimmable compact fluorescent CFL tube lamps
  • supported dimmable light sources (power factor > 0.5) with minimal power of 5VA using FIBARO Bypass 2 (depending on the type of load)

FIBARO Dimmer 2 supports only compact fluorescent tube lamps and fluorescent tube lamps with electronic ballast. Do not connect other types of fluorescent lamps!

Without dimming function it may work with:

  • compact fluorescent CFL tube lamps with electronic ballast
  • fluorescent tube lamps with electronic ballast
  • LED bulbs (power factor > 0.7)
  • supported light sources (power factor > 0.5) with minimal power of 5VA using FIBARO Bypass 2 (depending on the type of load)

Recommended values of power for supported loads:

Supported load types 220-240V~
Resistive loads
Conventional incandescent and halogen light sources
50-250W
Resistive-capacitive loads
Fluorescent tube lamp (compact / with electronic ballast), electronic transformer, LED
50-200VA
Resistive-inductive loads
Ferromagnetic transformers
50-220VA