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Sanjay tested the 400w 20,000K lamps on a regular magnetic ballast (90 PPFD) and on a PFO-HQI ballast (110 PPFD). It looks like you are about 20% better off on the HQI ballast.
Ninong
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- 07-17-2001 01:56 AM #1Governor
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who is using 400watt 20000k's without hqi ballast?
welll that my question.. anyone?
- 07-17-2001 12:39 PM #2Moderator
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Ninong
- 07-18-2001 03:13 AM #3Governor
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20 pecent doesnt bother me.. im just looking to fire them.. if a regular 400 watt ballast will fire them up then i want to get them... i mean i am talking about 2 400 watts on a 55 gallon reef. whats 20 percent???
- 07-23-2001 03:05 AM #4Governor
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^ still curious!
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