Thanks for the link -- I could browse through this sort of stuff all night and have added it to my favorites to go back and look at in depth! [Linked Image]

I have many years' worth of memories of playing "hunt the blown bulb" on light strings. Fancy electronic chaser lights and such like have become popular in recent years in Britain, but the old series chain is probably still the most common. Our chains are usually twenty 12V lamps for 240V operation.

The bulbs are supposed to short out when they blow to keep the rest of the chain alight, but it doesn't always work out that way.