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Old 07-26-2012, 07:33 PM   #1
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Replacing T5 HO tubes with HE


Hi,

Just bought a T5 aquarium light with HO tubes, for some reason this new T5 HO light is not as bright as the old T5 HE light, wanting to make the best of this new light, is it possible for me to replace the T5 HO tubes in the new light with T5 HE tubes, without the risk of burning my house down? I have very little electrical knowledge, so forgive me if this is a dumb question.

Thanks

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Old 07-26-2012, 08:53 PM   #2
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Replacing T5 HO tubes with HE


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Originally Posted by BornYesterday
Hi,

Just bought a T5 aquarium light with HO tubes, for some reason this new T5 HO light is not as bright as the old T5 HE light, wanting to make the best of this new light, is it possible for me to replace the T5 HO tubes in the new light with T5 HE tubes, without the risk of burning my house down? I have very little electrical knowledge, so forgive me if this is a dumb question.

Thanks
You have to go off the ballast, check that and see if it's compatible....

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Old 07-26-2012, 09:02 PM   #3
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Replacing T5 HO tubes with HE


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You have to go off the ballast, check that and see if it's compatible....
Hi Stickboy,

The ballast is 39w and the tubes currently fixed to the light is also 39W HO, can I replace these tubes with 21W HE tubes.

Thanks
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Old 07-26-2012, 09:23 PM   #4
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Replacing T5 HO tubes with HE


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Hi Stickboy,

The ballast is 39w and the tubes currently fixed to the light is also 39W HO, can I replace these tubes with 21W HE tubes.

Thanks
The ballast will list every compatible lamp. If unsure, call the ballast manufacture.
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Old 07-26-2012, 09:30 PM   #5
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Replacing T5 HO tubes with HE


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Hi Stickboy,

The ballast is 39w and the tubes currently fixed to the light is also 39W HO, can I replace these tubes with 21W HE tubes.

Thanks
Nope. The HE are specific for electronic ballasts with compatable wattages. You will overdrive the lamps and either burn them or the ballast out. If you must have the HE's you will need to change the ballast.
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Old 07-26-2012, 09:32 PM   #6
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Replacing T5 HO tubes with HE


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Nope. The HE are specific for electronic ballasts with compatable wattages. You will overdrive the lamps and either burn them or the ballast out. If you must have the HE's you will need to change the ballast.
I did a little research and came to the same conclusion, but with so much changing technology, I didnt want to assume anything.
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Old 07-26-2012, 09:36 PM   #7
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Replacing T5 HO tubes with HE


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I did a little research and came to the same conclusion, but with so much changing technology, I didnt want to assume anything.
I hear ya. I've been working with lamps and ballasts for about 30 years and it is constantly changing. It's like albums to 8 track to cassette to cd's and now digital.
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Old 07-26-2012, 09:38 PM   #8
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Replacing T5 HO tubes with HE


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I hear ya. I've been working with lamps and ballasts for about 30 years and it is constantly changing. It's like albums to 8 track to cassette to cd's and now digital.
I've only used T5 lamps a few times, and we only install fluorescents in closets. More on the MR16 and low voltage side of the lighting spectrum.
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Old 07-26-2012, 10:01 PM   #9
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Replacing T5 HO tubes with HE


Hi StickBoy and Missouri Bound

Thanks for all your help, will look into replacing the ballasts, are they expensive? The light costed me $170.
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Old 07-27-2012, 06:32 AM   #10
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Replacing T5 HO tubes with HE


Fluorescent lights take a while to burn in. Give them a week or so, and they will be brighter than the day you installed them.
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Old 07-27-2012, 09:06 PM   #11
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Fluorescent lights take a while to burn in. Give them a week or so, and they will be brighter than the day you installed them.
Had it for over a week now, will wait for another week to see if it improve.
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Old 07-27-2012, 09:08 PM   #12
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Replacing T5 HO tubes with HE


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Fluorescent lights take a while to burn in. Give them a week or so, and they will be brighter than the day you installed them.
Is it true or not to initially leave them on for awhile to burn in?

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