For installation in the corresponding central plate with rotary knob. This is plugged onto the appropriate rotary dimmer together with the lighting module. The LED lighting module creates a subtle ring of light around the rotary knob. To be completed with: Universal rotary dimmer insert for LED lamps MEG5134-0000. Universal rotary dimmer insert MEG5138-0000, MEG5139-0000. Rotary dimmer insert for resistive load with push-button changeover switch MEG5132-0000. Rotary dimmer insert for inductive load MEG5133-0000. Rotary dimmer insert for capacitive load MEG5136-0000, MEG5137-0000. To be completed with: Central plate with rotary knob System Design MEG5250-60.. Note: With light central plates the lighting module has a higher luminosity than with dark central plates. Color: white.