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Originally Posted by Bob_I
What you observed is certainly true. Although a few weeks is a bit of an overstatement. I have recently measured my 96W tube with my Luxmeter, and found that it had lost 50% of its intensity in about eight months. So unless you really overkill from the start, you probably will have to look at replacing bulbs every eight months.  |
In some ways I am surprised that it was that much of a lost but in others I would expect it to be that high. Also another wonderful tidbit I found out about PC is that as they get older they are susceptible to use more power and at the end of there life they can actually draw up to 5X there original current, so this might be another thing for those with PC bulbs to monitor as it could cause overheating of the bulb.
Steve
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