Chugalug
Being brought up on a diet of WWII films it came as a shock to me doing this research just how many non-combat 'accidents' there were. Not surprising on reflection, but still a shock.
Attached some pics of Chance lights in operation, Some are from the IWM web site - just the thumbnails with IWM credit on - hopefully this isn't going to be a problem. The last picture has a Pundit light behind the Chance light. I think that the top light should be red - ie an obstruction light, bit unnecessary when the main light is on!
Cheers
James