ProfiLuxTunze2 Connection cable ProfiLux<->Tunze for adjustable current pumps at L2(L4) The adapter cable Tunze 2 controls via the interface L2/L4/L6. If you would like to control efficiently two current pumps at one dimming channel, you need Tunze 1, Tunze 2 cables and splitter cable YL2, which you can get in three different lengths (1 m, 2,5 m...