Done some more on the garage.
With the intended lights that will be in the garage, I have built a small power cabinet to house the battery box, it is a really easy build with the Plasticard, but unfortunately I am sorry I didn't take any photos of the build. It only took me about 15 minutes all told, this Plasticard is real quick to build anything. There is only one working switch, the rest are false. But we think it does what is needed.
The office needed a light, so I looked at interior lights, but I found them to be far to big or small. So while having my morning ablutions, I thought just came to me
The screw top off a toothpaste would be just the correct size after I cut it down a little.
Photo is a bit fuzzy, but I hope you can see were I made the cut. I then made something to hold the lamp, I didn't have at the time anything thin enough to fix it to, so I used a short piece of 6mm tube. I heated some water and used a drill bit to help bend it enough to look like a tube that wouldn't look out of place.
I then fitted it to the screw top. Put a 3mm led in and tried it out to see if it looked right. It's not in it's final position..
In the office, think it works.
Got loads to do yet though, so I will update has I go along.