General description These 2PCS 24V 3.9 Inch 3 LED Truck Trailer Front Rear Side Marker Lights are designed for use as LED marker lights on the front, rear, side, roof top, or as clearance indicator lights on various vehicles including 24V pickups, trucks, trailers, SUVs, RVs, caravans, boats, lorries, and buses. They feature upgraded Piranha LEDs that provide excellent heat dissipation, a wider lighting angle, higher light intensity, and a longer lifespan, emitting a vibrant red light. Technical specifications Working Voltage: 24V DC LED Type: 3PCS Piranha LED for each light Light Color: Amber Back Wire Lead Length: 9 inches Color: Orange Material: ABS Installation Installation is straightforward: connect the black wire for ground and the red wire for positive. Secure the black base using the 2 flat screws provided, then snap the light into the base. To run the back wire lead, you can either drill a center hole or use washers when fixing the base to create space for the wire lead