Partsam 5x Roof Running Clearance 15442 Smoke Light Green 5050 T10 LED For 1973 - 1997 Ford F150 - F350 This is For 1973 - 1997 Ford F-150/F-250/F-350/F Super Duty stock roof cab marker Application: Roof Cab Marker, Roof Running Light, Clearance Light Come with T10 plug socket, convenient for modifying & rewiring Direct replacement for OEM factory stock cab marker covers If the LED won't light up, simply flip it 180 degrees (reverse the polarity)