Smoke Lens White/Red LED Rear Fender Marker Lights For 15+ Chevy GMC 2500/3500HD Year_1978 you just need to use

you just need to use the red and black wires and leave the third wire un-used

Directly bolt on this license plate frame mount to any US/Canadian 12V car

This page features the pair of mini 3" JDM Infiniti Q45 style 25W LED projector lens kit for most H1

Great as an upgrade from stock brake lights for brighter output

Smoke Lens White/Red LED Rear Fender Marker Lights For 15+ Chevy GMC 2500/3500HD Year_1978 you just need to useiJDMTOY Smoked Lens White Red Full LED Dually Rear Fender Marker Lights Compatible With Chevy GMC 2015 up 2500HD 3500HD Double Wheel Fender Bed, Powered by Total 60 LEDs Features Compatible with Chevrolet 2015 up Silverado 2500HD 3500HD with dually double wheel fender bed side markers from the factory Compatible with GMC 2015 up Sierra 2500HD 3500HD with dually double wheel fender bed side markers from the factory Complete kit featuring two pairs (4)