Review on 🏍️ Enhance Your Harley's Style with QUASCO Sequential Led Turn Signal Inserts - Front 1157 + Rear 1156 Blinkers with Smoked Lens for 2 Inch Bullet Housing - Perfect for Sportster Softail Street Glide Road King Cruiser Turing by Kenneth Wood

This is a great product but no instructions are included. It's not just something you plug in and it works. (At least on my 2003 Sportster 883.) Cons. It came with four resistors in addition to the bulbs and no instructions. Not knowing anything about this wiring, I figured why it was needed. I can usually find everything, but this wasn't easy to find, I had to look for something similar in the situation. If the lights stay on and don't blink, you need to add resistors. Long story short, I had to use two resistors in my wires, purple and brown. So they are installed, flashing and looking great, but my turn signal is not flashing. At least it's not that important. The upside is that these lights are very bright and good looking.