Simple plug-and-play conversion to convert all of your stock Tour-Pak lights to run, brake and turn. Works with LEDs only. Greatly increases rear and side visibility of motorcycle by converting both side markers and rear taillights to running, brake and turn lights. Corners of stock LED Tour-Pak must function as Run/Brake/Turn.. BCM may need to be reprogrammed.. This unit is compatible only with OEM Harley-Davidson Tour-Pak LED Side Arms.. Confirm stock Tour-Pak operation before purchasing..