I did see that one, Celtic, but when I contacted the seller, the response was that it was a direct replacement in so much that it would work with the Laguna. The seller could not confrm it had the Renault bespoke connections.
I asked if he could check, but was told that he did not know what the laguna connections looked like.
If you check his other listings, he lists the same model as a direct replacement for Renault, Vauxhall, Rover, Seat, Vw etc etc.
The reason I chose the low prifile one is that the input voltage connector was on a lead, not just a plug which the above ballast had. This meant its just a snip-and-connect job.
I have ordered a second ballast today to for the O/s, so that I shouldnt have to worry about water ingress.