Our Plug-n-Play Load Equalizer-03 is designed to prevent rapid flashing turn signals. This unit is 100% solid state with thermal protection and produces virtually zero heat. Plug-n-Play SUPER Load Equalizer LEQ™ (Sportster 1999-2003), (Dyna 1997-2011), (Softail 1997-2010), (Road King & Electra Glide 1996-2013) (Road Glide 1998-2009) (Street Glide 2006-2009)