The LED compensator is used with LED lamps when lamp flicker is seen with a 2-wire dimmer. Please note: PLC interference effects that cause flicker symptoms in certain EU countries, will not be blocked by this product. You can also use the LED compensator as a load to the connected dimmer (55X-722X1) to complete the commissioning with the wireless smart hub for Niko Home Control (552-00001). It will remove afterglow with lamps or reduce switching delays between led drivers in a light circuit. One or more LED compensators are installed parallel over a LED lamp, between the phase wire and the neutral wire.