Light bulb replacement
How many off and on cycles did they go through? A fluorescent, compact or otherwise, that is turned off and on frequently will not last as long as one that has not gone through too many turn-ons even if the latter has had somewhat more burning hours.
Are the lamps pointed or facing down with the ballast units directly above? Are the lamps enclosed by a shade or diffuser? This can result in a higher temperature inside that shortens the life of both bulbs and ballasts.
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The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
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