Headlamp warning light after replacing assembly

[btec 0]

I replaced the standard halogen headlights to the ones with halo rings, now its showing a headlamp warning light whenever I turn on/off the car. The projector lights are not working either. Fog lights, high beam, halo rings OK.

The headlights with halo rings were in perfect working order when I took them out.

I've checked all the related fuses and plugs and they seemed fine. Is there a reset required after changing the headlights?

[Gaz 1062]

Pretty sure it needs coding