This is a great quality part to replace when your front
headlight beams burn out. The sealed ones you buy, you have
to throw them out and get a new ones, every time. With
these you keep the headlight beams and just replace the
center H4 bulbs that come with this beam. These also have
the parking bulbs inside. This is running parking bulb that
lights up with the front headlight beam, and when you turn
on your blinkers the parking bulbs inside the headlight beam
lights up giving you more security when you turn. The H4 bulb
and the Parking bulbs are included in this headlight beam.