Could anyone help me to identify or even find a replacement lamp for a string of 40 xmas lights please?
here is a pic of one of the bulbs.

Thanks

-------------------------
Tristan Thorne MEng MIEE

It appears to be 7V and 5W, although the picture is not clear, and it may be something else such as 3.7V
Could be an American E12, or a European E14, as far as I'm aware, there is no such size as E13.
Do you have a Vernier Guage, that you can use to measure the cap, up near the bulb?
The numbers after the E refer to the diameter of the cap measured in millimeters.

Probably a 6V 5W SES lamp (14mm nominal) used in series on a 230/240V supply for the Xmas lights -

Regards

OMS

-------------------------
Failure is always an option

Looks like a 7 to me.

It probably is Spin - they were sold as 6 or 7 volt units

Almost certainly as 7V on the picture anyway

Regards

OMS

-------------------------
Failure is always an option

I think you will find those bulbs are retro C7's they operated on a parallel circuit not series so if one went out the others stayed lit.

regards

-------------------------
"Take nothing but a picture,
leave nothing but footprints!"
-------------------------
"Oh! The drama of it all."
-------------------------
"You can throw all the philosophy you like at the problem, but at the end of the day it's just basic electrical theory!"
-------------------------

Almost certainly as 7V on the picture anyway
---------------
Maybe 6.7 volts then!