So, after Tuesday's efforts, my signal cabin lights up at night, but it looks a bit modern.
Back in the good old days, lights were powered by gas or oil rather than electricity. The illumination tended to be poor and a distinctly yellow shade.
My lights were bright white but no matter. The solution is wrapped around a toffee from Quality Street. The yellow cellophane can be cut to size and glued over the LED strip.
The results speak for themselves.
Note: In these views, the lights are running from a 9V PP3 battery.