In article ,
asalcedo wrote:
There is one situation where an ES fitting is clearly superior: Bulbs
subject to shocks and vibrations, like in a handheld inspection lamp.

The wobble of the BC fitting added to the shocks and vibrations will
reduce the life of the bulb to only a few days, if at all. With ES
fitting the bulb is more securely fastened to the lamp and will last
much longer.

No mains incandescent lamp will last long if it's likely to be dropped,
etc. Although RS types are better, but give less light. Either use low
voltage or fluorescent.

--
*Geeks shall inherit the earth *

Dave Plowman London SW
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