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View Full Version : Will the Workhorse5 run.........


KevinM
01/31/2004, 12:00 PM
Will it run a single 46.5" VHO tube? The specs say it's good for 128W, but I see conflicting answers in searching. The 328,592 wiring diagrams on Fulhams site are no help, either, because there are no lamp specs with any of the drawings.
I want my 2 VHO tubes to be independantly controlled.

Thanks
Kev

grim
01/31/2004, 02:15 PM
Yes, but it is not recommended. It'll actually lead to shortened bulb life. With that, I run 2 110w VHOs on the WH5s.

Jim

Tunjee
01/31/2004, 02:40 PM
Ya, you'd be overdriving the bulb. It would burn brighter and burn out faster.

grim
01/31/2004, 02:48 PM
Actually, a WH5 will underdrive a VHO bulb. The shortened life is due to cathode deteriorating due to 'sputtering' from underdriving. I went back and forth between the tech guys at fulham on this. It's not recommended. Go with two WH7s instead, single bulb per ballast. The price difference is minimal. I'm doing it only because I had a few WH5s laying around.

jb

Tunjee
02/03/2004, 05:43 PM
How many watts is your VHO KevinM.

Tunjee
02/05/2004, 06:33 PM
Check this tread out for overdriving info.
http://archive.reefcentral.com/forums/showthread.php?s=&threadid=48133