<br>Easy to upgrade/replace your current incandescent Bulb. <br> <br>Comes with everything needed to install and user instructions, easy to install follow directions <br> <br>Super brightness visibility and Longer Lifetime LED advantage <br> <br>Waterproof and Submersible, but do not submerge for long periods of time <br> <br>Complies with DOT standards <br> <br><b>Application:</b> <br> <br>Universal for Under 80" Inch width towing vehicle, like truck, trailer, tractor，semi-trailer，Dump Truck，boat, bus, Lorry, Van, caravan, snowmobile, Camper, RV.etc <br> <br><b>How to install ?</b> <br>Connect the BROWN wire of the Trunk Harness(4)to the towing vehicle's Running Lights wire <br>Connect the YELLOW wire of the Trunk Harness to the vehicle's Left Stop & Turn light <br>Connect the GREEN wire to the towing vehicle's Right Stop & Turn light <br>Attach the WHITE GROUND wire to the towing vehicle's frame <br> <br><b>Package Include:</b> <br>2x running/stop/tail/turn signal lights, <br>2 x marker lights <br>license plate bracket and Mounting Hardware, <br>25ft length of 4-pin wire Harness( 21.65ft length wire harness and 3.93ft wire harness ) <br>User Manual