4-1/2,Amazon.com: LX-LIGHT Black 4.5 Inch Round LED Passing Fog Lights With Red Demon Eyes/White DRL/Amber Turn Signal Halo Compatible with H arley ,Amazon.com: LEDUR Motorcycle Auxiliary Lights Kit White Amber Strobe LED Driving Fog Lights 6 Modes Spot Pod Lights with Switch Wiring Harness Clamp ,Amazon.com: LX-LIGHT Black 4.5 Inch Round LED Passing Fog Lights With Red Demon Eyes/White DRL/Amber Turn Signal Halo Compatible with H arley ,Amazon.com: LEDUR Motorcycle Auxiliary Lights Kit White Amber Strobe LED Driving Fog Lights 6 Modes Spot Pod Lights with Switch Wiring Harness Clamp