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 Topic: Workhorse 7 and VHO’s?
Posted: February 01 2005 at 4:26pm |
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The Workhorse 7 is supposed to be rated for T12VHO's. How many 46" 110vho's can it run? If the answer is "one" then how do you wire it. I would like to have two but it doesn't appear to be very safe. Please help!!
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Aquarium Creations
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Posted: February 01 2005 at 4:47pm |
you can run 2 110watt bulbs off of it
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Mark Peterson
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Posted: February 01 2005 at 6:12pm |
The WH-7 can run up to 96" of VHO in series. The way I, who has done it a lot, do it is to connect three red wires to the two pins of the first tube then connect all pins of both first and second tubes together and then connect the yellow wire to the 2 pins on the remaining end of the second tube. The fourth red wire is clipped off and insulated to prevent injury.
I have a fold out sheet of all the possible PC/VHO tubes and combinations of WH ballasts and wiring schematics or you can go to www.fulham.com for schematics.
Fire Shrimp at Marine Aquatics sells ARO ballasts which may simply be Fulham ballasts in a shorter fatter package.
Oh and it is completely safe if wired properly with properly insulated connections. Butt-end connectors, end caps and properly grounded ballast (and reflectors) are safest.
Do you have a reflector or need to get reflector material?
Edited by Mark Peterson
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Posted: February 01 2005 at 6:50pm |
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Thanks, Mark. I've looked on Fulhams site and I cannot find any wiring diagram for a Workhorse 7.
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Mark Peterson
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Posted: February 02 2005 at 11:57am |
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Look again. It's the big gray box in the center of the window that says "...and wiring diagram". Consider your two VHO 46.5" T-12's as though they were one 96" T-12.
Feel free to call and I can walk you through it.
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acerob
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Posted: February 03 2005 at 2:37pm |
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I think that the ARO Balasts that you can get from Marine Aquatics are great. I've been using them for 6 months and I've been very happy with them. Plus the wiring diagram is right on the balast.
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Highland, UT
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jglover
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Posted: February 03 2005 at 5:48pm |
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Posted: March 01 2005 at 12:54am |
hi
I want to run a 24" VHO bulb 75w. What is better :WorkHorse 7 or ARO AS-220 or the PFO ?
and if you have adresses where to buy them ... only shops or person that can ship to canada
thank's to all
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Mark Peterson
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Posted: March 01 2005 at 10:31am |
I've misplaced my chart, but I'm pretty sure a WH-5 is what is needed for that application. That is what the box is for on the fulham website, to determine the application/which one to use for which tubes. 
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jfinch
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Posted: March 01 2005 at 11:24am |
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A WH5 will not properly power any VHO bulb. If you want to use a Workhorse ballast, then you need a WH7. The ARO-220 would work too. A few months back at one of our meetings we measured the amp draw for these two ballasts and found the ARO-220 drew less then VHO needed amps and the lamps were visibly dimmer then the WH7 lamps. But we may have had a bad ARO ballast...
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Posted: March 01 2005 at 5:28pm |
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Yes jon it was a bad VHO ballast since then the ARO ballast problem has been fixed..
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jfinch
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Posted: March 01 2005 at 7:14pm |
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Thanks for the info Eric!
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Mark Peterson
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Posted: March 02 2005 at 11:13am |
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I just found my chart. Thanks to Jon for chiming in with the correction and thanks to Eric for setting us straight on the ARO ballasts being equally as effective as Workhorse ballasts.
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