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Old 01/11/2008, 06:15 AM
RacerX308e RacerX308e is offline
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Join Date: Jan 2004
Location: Indianapolis, IN
Posts: 83
Always have been told and read that a 6500k bulb is the best approximation of sunlight which then gives the best growth. It would prob be used more b/c of this but it is fairly yellow so some people opt for higher K for aesthetics. I started with 2 Ushio 6500 250 MH and supplemented with Blue actinic VHO's and had the best growth results.