If you were to put 12 volts to LED direct you would most likely burn the LED out instantly. The supplied harness has a regulator to drop voltage. Chuck Rhoads (a Europa owner) has J.C. Whitney LEDs installed and has problem with noise when transmitting. I did a quick test on Pepboys LED putting my Vertex VXA-700 near this regulator and BINGO, it's noisy. Of course we also tested running on supplied Lithium battery and things were dead silent. Since there was a wad of aluminium foil in the trash (left over from chasing strobe noise) and wrapped the entire harness, no change at all.
Ira mentioned:
"LED high intensity elements are often pulsed to achieve higher output within thermal constraints hence RFI" so it is possible that is what they are doing.
Y9-02-21