Shedding some light on the subject

I'd noticed that one of my number plate lights was a bit dimmer than the other so it was replaced at a cost of 59p from my local Motosave. I'm surprised that it got through the MoT (I think number plate lights are now part of the test these days) and even more surprised that the police haven't stopped me because from a distance it looks like the bulb has failed. Anyway, all is well again.