Xprite Red Blue LED Emergency Strobe Lights Kit, Surface Flush Mount Grill Grille Hazard Warning Safty Flashing Police Light for Volunteer Vehicles Off-Road Trucks Cars SUV ATV UTV Motorcycle - 10PCS

LED Strobe Lights Vehicles Trucks Emergency Strobe Lights Kit LED Emergency Strobe Lights 4 LED Strobe Warning Emergency Flashing Light wire Red - Positive; Black - Ground; Yellow - to Change Patterns; White - Sync; Gray for Static attach the red wire to a 12v power source and black to a proper ground.to change patterns, touch the yellow wire to the black ground wire.to sync: The gray wire from the 1st light will goto the white wire on the 2nd light.Will also work with white wire from the 1st light to the gray wire on the 2nd light.And continue the same wire pattern to sync multiple lights.

NOTE: Connect sync wires before positive and negative when attaching multiple lights.