Rapport roof lights/vents

Hi motorcaravanners,
the outer section of my rear roof light decided not to return home with the rest of the camper so I've screwed and glued a piece of clear perspex temporarily, but would like to get replacement.
Anybody know what brand they are so I can look for a replacement please?
Or reccomend alternatives please?

thanks all

andy

hi don't know the rapport but if you have a inner section like mine you could just unscrew it from the roof which would reveal the actual sky light and you could just measure the distance from side a-b and c-d then you should be able to find one hope this helps.
john