The top two projectors are for low beam and the bottom two projectors are for high beam.
These headlights come with activation light feature, which is a running light when you unlock your Sierra, and with DRL and sequential turn signal light tube.. AlphaRex NOVA-Series LED Projector Headlights (Chrome) - 880607 Above all, the jet black housing is our special designed housing that has the glossy look mixed with the black paint, and it will give your truck a sporty and luxury look at the same time. We also apply a layer of anti-fog agent on the headlights lens - thus, it allows better light output in extreme weather.