Displaced threshold lighting.
The simple answer is - normally there isn't any. If you think about it there's no real need. During the day you can see the whole paved surface, hence the requirement to mark it with the large arrows that you see pointing towards the threshold. At night however all you can see are the lights, so you start the standard runway lighting (edge lights and green threshold bars) from the start of the displaced threshold and any approach lighting will be flush fitted into the unuseable landing area. (Flush fitted because this area can still be used for take off and sometimes taxying.
There are occasions this area is required to be lit in which case it will be delineated by red edge lighting visual from the direction of the approach. This lighting will be one way - from the other direction it will probably be white lighting with the red 'end' lights at the start of the displaced area because it can still be used as runway if taking off from the other end.
Have a look at the Aeronautical Ground Lighting section of
CAP637 - Visual Aids Handbook which will show it much better than can be explained.