They are the stock housings, but the addition of the projector focuses the light too a specific spot under the "cutoff" which formed by a cutoff shield that has the stepdown on the drivers side to not blind oncoming traffic like a truly stock housing/HID combo will do.
These will give your "stock" Ford housings virtually the same light output and pattern as a vehicle that comes from the factory with HID's. Headlight aiming is key after install to truly get that awesome cutoff.
Also a side note:
Most people run a 55watt 6000k bulb in their PnP HID kits, but in actuality, ALL the factory systems on the road run a 35 watt 4300k bulb and I guarantee any factory HID kit (or retrofit) will outperform any PnP kit in a stock halogen bucket. The projector helps create that blueish cutoff line and overall "white" or "blue" color everyone is after.