Here....wots these for?

While pottering about under the bonnet I noticed some plugs on the wiring loom where the headlights are.... Would I be right in thinking that this would be for driving / fog lights?

If so could some one tell me which plug is for what, also would I need to check if there is a fuse / relay / switch somewhere to be able to use these connections

Thanks

Black ones headlamp levelling, white ones fog lamps, and yes u will .

I chucked on a pair of these and a switch and hey presto!