So a slightly odd question but, do "full-frame" lamps loosen over time from vibrations in a car? Ie, the lamp is in a sleeve, in a cardboard box, alongside another, similar lamp. So no room to roll around, but just enough room to not take the shock to its internals... or so I thought.

Does driving with lamps, especially those that are BT-shaped, affect arc tube frame sturdiness, ie, does the lamp "rattle" more after spending time in such conditions? And even though such conditions are present, do potholes wreak havoc on sensitive internal parts?


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For a bit of context here, I took three vintage lamps out with me this weekend (1/18). They were stacked neatly in a cardboard box (with a fourth, sealed-in-box LED retrofit lamp in a perfect spot to allow for stability) for an interview for one of my colleges. Well, I forgot about them until this evening, and when I took them out of the car, I swore their rattling noises were more pronounced. However, I do not have a definite recollection of how loud or quiet they were prior to spending four days in the trunk of my car.

Thoughts??? Did I "ruin" a couple of perfectly-good lamps internally??

Shaking them around definitely won't help, so if you kept them in the car boot for unnecessarily long time just because you were too busy to take them out, I would say you did cause some damage. It even may not be the rattling itself, but e.g. some cracks propagating further, so leaving less margin till a failure.