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20K Radium bulbs and ballasts |
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20K Radium bulbs and ballasts |
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01-03-2003, 05:36 PM
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#1 |
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Council
Join Date: Feb 2002
Location: Utica Mi.
Posts: 270
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20K Radium bulbs and ballasts
Since ordering my dual 400 watt PFO regular ballast, I've been reading that in order to fire the German made bulbs you need a "pulse start", "electronic", or "HQI" ballast because the German bulbs are made to fire off of 220v as opposed to a American 120v, is this true???
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01-03-2003, 05:46 PM
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#2 |
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Moderator
Join Date: Oct 2001
Location: Spokane Valley WA
Posts: 2,436
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My Radium fired just fine on my 400W PFO regular ballast. I ran it on 2 different tanks with 2 different ballasts and it always fired. It ran a bit more blue and dim on the PFO regualr ballast compared to the PFO HQI ballast (I have both).
HTH, Kevin
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SPSguy On - On |
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01-03-2003, 06:08 PM
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#3 |
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Moderator
Join Date: Jun 2000
Location: Louisiana
Posts: 20,352
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Sanjay Joshi tested the 400w 20,000K Radium bulb on both the regular ballast and the HQI ballast: http://www.personal.psu.edu/faculty/...omparison.html
As you can see from his test results, the 400w 20,000K Radium bulb puts out 21.6% more PAR on the HQI ballast than on the regular ballast.
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Ninong |
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