For fluorescent lamps with electronic ballast, electronic transformer with 1-10 V interface. With push-off switch 1.7 A. To be completed with: Central plate with rotary knob System M MEG5250-03../-04../-06.. Central plate with transparent cover and rotary knob M-Creativ MEG5250-3500. Central plate with rotary knob System Design MEG5250-60.., System Area MEG5250-40../-41../-42..