The Natural Philosopher wrote:

Nope. All the bulbs were simply fail open, Bought a 9V bulb tester to
plug em all in before plugging em into the tree.
Thank Clapton for LEDS...

Indeed! A couple of sets that I had even came complete with a
bulb tester. What a pain to get them all working each year.

If it wasn't failed bulbs, it was poor contact in the primitive
wedge bulb holders.

Chris
--
Chris J Dixon Nottingham UK
@ChrisJDixon1

Plant amazing Acers.