Our Plug-n-Play Illuminator™ provides running light, brake light and turn signal functions to the rear turn signals. This modules also has a built-in Load Equalizer to prevent rapid flashing turn signals. FITS: (Sportster 1999-2003), (Dyna 1997-2011), (Softail 1996-2010), (Road King & Electra Glide 1997-2013) (Road Glide 1998-2009 & Road Glide Ultra 2010 to 2013) (Street Glide 2006-2009)