wiring lights in series

[phil_ballard]

Ah yes, I see .... b****y clever these Chinese

 

[kendor]

Not true, there are sets that have a small coil of wire around the filament legs that allow the string to keep working even if one or two lamps have blown,

So how do the lamps work? How/where is that coil of wire connected when the filament is intact and the lamp is working normally?

although i don't approve of such lights ( the more that blow the brighter the others become as the voltage increases across the ones left)
the fact is they do exist.

Would you rather the users of such a set had the problem of replacing each of up to 60 or 80 or whatever lamps one-by-one on a trial and error basis until they found the one which had blown?

#
The coil comes into effect when the filament blows
one reason to have a voltsense probe, just make sure that the continuous wire is neutral not live so that the probe can do it's stuff

 

[ban-all-sheds]

Bit of a buççer trying to trace the wiring with a probe when the lights are on the tree with the wires mixed up with sharp needles and fragile glass baubles.

I don't know why you don't like the lamps which fail-closed, but I think I'll stick with them.