Triple spotlight: bulbs blowing in one of the fittings
An update: the lights were on for several hours last night, and were tried
again this morning. Neither the new bulb (in a non-suspect fitting) nor an
old and well-used bulb (in the possibly faulty fitting) have blown. Perhaps
I was just unlucky in the three bulbs which only lasted very briefly.
Thanks to everyone for the thoughts and suggestions.
Bert
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