If cost is an issue, then try to find a used setup for sure. I agree that SE is probably a better choice for you because it spreads light better, but be careful about the ballast and bulb combination you choose because there are some very poor 250w SE combinations. Another thought would be to use 175w electronic ballasts with Iwasaki 15K SE bulbs, this combo is a "par breaker" and puts out more par than many 250w setups.
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~ Mindy
SPS fanatic.
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