With a 30" length to cover, I would probably go with a single ended MH (175w or 250w). Although I like the DE MH, the spread of the SE is better. You'll need a good reflector on that pendant too.
For actinic, you could get a 65w PC or 2 (& stagger them in front & behind the MH).
That's a lot of light but it would allow you the option of keeping SPS later. Trust us when we state that buying the proper lighting system the first time, will save you tonnes of $ in the long run from not having to upgrade constantly.
Anthony
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