See below some photos showing NAS lights on the front & rear of my 90. I first fitted them 12-years ago but in recent years changed them for Le Peri full LED ones (apart from the front side which just have LED replacement bulbs in them as an LED side-light is not available from Le Peri).
There are several different (cheaper) ones available which are an alternative take on the same theme but all use the same mounting plinths. I have attached a picture of the Wipac ones as an example, just too bling for my taste.
I have the BOB standard pattern 70mm led ones and they are far brighter than bulbs so I would imagine the NAS led are super bright... Le peri ones are fairly dear mind.