I would also question the longevity of these fluorescent lights. I find they don't last anywhere near as long as the advertised life spans. I think fluorescent lights last much longer than incandescent globes if they are just left on. But where they are used in place of incandescent globes in the home and people seem to switch them off and on a lot, they don't seem to last. In the last 5 years, I have had to replace quite a few and they're not cheap at $6 each.
Rob
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