Plug-in module for rear side that adds a rapid three time \'flash\' when braking, and a run-turn-brake function to single filament OEM and halogen lights. If you do not want the flashing brake function, it can be turned off by unplugging the connector marked \'flashing\'. Note: A load equalizer is not required. Note: Not compatible with Kuryakyn Panacea taillights. Note: For 04-13 XL see 968343 adapter, which allows installation of 968344 \'The Flasher\' on these non CAN-bus Sportster models.