Thought this might be of interest to some.
Just fitted these:
https://www.classiccarleds.co.uk/products/2-x-bay15d-red-stop-tail-led-4014-30-smd-brake-rear-light-glb380-p21-5w-classic-car-negative-or-positive-earthThey simply fit in place of the old tungsten filament bulbs. A great improvement on the existing lights which aren't very good. Brake lights are obviously very important and I now have the confidence that if I'm braking to join a queue or sitting in the middle of the road waiting to turn right, especially in the day, I can easily be seen.
Whether they're legal or not I don't know nor care, but I do know that they are safer for everyone!