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Old 10-04-2017, 11:23 AM   #1
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T5 fluorescent tubes frequently need replacing


Hello,

I have 2 32" T5 fluorescent fixtues installed behind a floating mirror vanity in my bathroom. I find that the tubes need to be replaced almost once a year. I would expect a longer lifespan so I was wondering if this is pointing to a bigger issue. This is happening on both fixtures (same circuit). We are a family of 3, so the light is used quite regularly. I'd say on/off at least 10-12 times a day, but never on for an extended period of time.

I noticed dark spots at the ends of the tubes.

Could it be the humidity (we have decent extraction)? Or not enough clearance (see pics).

Thanks!
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Old 10-04-2017, 11:43 AM   #2
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Re: T5 fluorescent tubes frequently need replacing


In my observation, fluorescent lamps don't like to be turned off and on. This will shorten their lifespan. When you installed new bulbs did you leave them on to 'burn' them in?
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Old 10-04-2017, 11:49 AM   #3
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Re: T5 fluorescent tubes frequently need replacing


hmm, I didn't know there is a burn in period, but now I know!

I thought the frequent on/off might be an issue.

Would LED tubes be any better?
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Old 10-04-2017, 12:16 PM   #4
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Re: T5 fluorescent tubes frequently need replacing


Quote:
Originally Posted by eastvantrading2 View Post
Would LED tubes be any better?
Don't have any first hand experience with them.
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Old 10-04-2017, 01:26 PM   #5
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Re: T5 fluorescent tubes frequently need replacing


It sounds like the ballast is bad
LEDs are an smart replacement. Make sure you but direct wired tubes that bypass the ballast.
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Old 10-06-2017, 06:04 PM   #6
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Re: T5 fluorescent tubes frequently need replacing


LED would be far better...
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