Agreed No pics i`m afraid but 2 of these worked for me as dimmable reading lights sunk into the base of the rear hatch cover / headbaner . https://www.ebay.co.uk/itm/12V-DC-2W-LED-Down-Light-Inc-Switch-Caravan-Dimmable-Motor-home-Truck-Cab-Lights/263047255434?ssPageName=STRK:MEBIDX:IT&var=562050139196&_trksid=p2060353.m1438.l2649 I alus struggled with old 5w bulbs being a bit too bright . These are dimmable and can be switched off individually as they are push on/off meaning if you only need one on as the missus wants to get to sleep give it a tap and hers swithes off , then dim yours - ACE !! Remote 12v dimmer was a gift from @paul2590 but they are cheap as chips https://www.ebay.co.uk/itm/3-Key-12...-Dimmer-LED-Wireless-Controller/173854805159? These are a relly good solution to reading lights above the bed
These might help. Very good series that covers pretty much everything you need to know about fitting out an interior. Obviously needs adapting to a bay but some good stuff in about 50 videos I think.
Sorry not a great photo and not yet finished but pretty happy with how it seems to be going. A good amount of light and not really noticeable when not in use.