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camarolover View Drop Down
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    Posted: September 07 2007 at 8:46am
Is there any way to convert my 96 watt pc ballasts to run t-5 bulbs? Could I just wire up new holders or I'm I just dreaming of a simple fix?
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Mark Peterson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mark Peterson Quote  Post ReplyReply Direct Link To This Post Posted: September 07 2007 at 12:02pm

T5 are HO (high output) fluorescent tubes. Yes, any ballast made for pc's can run t5's. T5 end caps are easily available. I'd check at Commercial Lighting. They may not have water tight end caps but will have the clips to hold the tubes in place.

Wire it the same way as a VHO tube taking into consideration the total length of tube(s). Measure the length of the 96 W PC and double it. That will give you an idea of roughly how much T5 length the ballast will run. The length does not have to be exact, but the wiring could be tricky. Note which wires connect to the leads in both pairs of tubes on the PC and hook them up to the opposite ends of the T5. If two or more of the T5 tubes you plan to use equal the doubled length of the 96W PC, connect the in-between ends together. In other words connect two ends of the T5's directly together. This means connecting all four pins (2 from each end) together as one. This fools the ballast into thinking the two T5's are one long tube, which is really what the biaxial 96 W PC really is.
 
Does this make sense? If you have other questions please call. It's much easier to talk about it while you are looking at it. And then you don't have to wait for me to come back to the MB.Smile


Edited by Mark Peterson - September 07 2007 at 12:07pm
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BobC63 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BobC63 Quote  Post ReplyReply Direct Link To This Post Posted: September 07 2007 at 6:47pm
Originally posted by camarolover camarolover wrote:

Is there any way to convert my 96 watt pc ballasts to run t-5 bulbs? Could I just wire up new holders or I'm I just dreaming of a simple fix?
 
If the PC ballasts are e-ballasts they will run any other type of flo bulb up to the max wattage (96w) but will only run to the wattage of the bulb itself - so you can run any length T5 bulb (up to 96w) and you will be fine...
 
Just wire up the T5 holders
- My Current Tank: 50g Starfire Cube Reef


* Marine & Reef tanks since 1977 *
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camarolover View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote camarolover Quote  Post ReplyReply Direct Link To This Post Posted: September 10 2007 at 12:02am
Thanks, so does anyone know the wattage of 6' t-5s or is there such a thing, or would it be better to just run 4' bulbs. The 4 foot bulbs are easier to find and might be cheaper. Also hellolights.com seem to have the diy lighting parts cheap. I just got some 4' t5 bulbs on sale for $10 each from them {thanks to someone on this board} and they seem to be brighter then the ones I had before.
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Mike Savage View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Mike Savage Quote  Post ReplyReply Direct Link To This Post Posted: September 10 2007 at 9:22am
Currently there are no 6' T5HO in the proper spectrum for our tanks. You can get 5' though. The 5' tubes are 80 watt.
 
Mike


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