On May 20th last I attended one of the very few model rail shows in our area for Victoria.
One particular stand was to my avid interest.
Ngineering Model Railroad Products and Services.
On it were displayed various mock ups of their products using sub-miniature LED's,wiring,fine stainless tubing,capacitors,resistors and various other electronic goodies.They have the yellow white LED's plus some incandescent types.
There was another thread talking about LED's earlier in respect of sources for yellow white LED's.
The Nano LED's look tiny compared in their photos to a 1.2mm grain of wheat lamp.The micro LED's are only very slightly larger.
I was very impressed and can think of many applications for use.
Their website is very interesting and full of useful information about their products and they have many,many tips and instructions for us hobbyists.
One tip was for a "Jewelers Bib".Can't tell you how many times I have been on the floor looking for tiny parts that somehow seemed to fly off into space.
There are plans for the bib but not being a sewer expert I took one of my old T-shirts [white] and cut it up the back and arround half of the neck band leaving the neckband intact in the front thus creating a "bib" and with a bit of triming and Velcro at strategic points I can now sit at my bench with a trough the width of the bench and hopefully no more scratching about on the floor.The Velco makes it easy to leave the work for any reason i.e. tea breaks.
Here is the link
You will see on the web site there is a distributor in the UK.