53 Amber LEDs per side, the inserts produce a bright amber running light with full-contrast amber turn signal thats virtually invisible when off. Open honey-comb grill to allow air to flow through. Unit simply snaps in place with plug and play wiring for easy installation. Optional Lower Fairing Blocker Plates can be installed behind the honeycomb grill for a solid panel appearance. Replaces OEM 57100151 (Left) and 57100152 (Right).