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Originally Posted by danny zubot
DE bulbs are more intense than SE bulbs so you might be ok with having SPS and clams as long as they are placed higher up on your rockwork. Some people have told me that a 250 watt DE is equivelent to about 325-350 watts SE.
BTW, $300 seems like a pretty good deal. Does that include the balast?
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Some people told you wrong, it has nothing to do with the bulb and everything to do with the ballast. If they are comparing a DE (always HQI) to a SE (normal output) then yes this is true, but if you run a SE on a HQI ballast the SE will normaly outpreform the DE. another benifit to running a SE bulb on a HQI ballast is you will get about twice the coverage as you would from a DE bulb so that means you will have a larger and more even lighting patch in the higher intensity area.
Steve
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