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  1. GREIDY78

    T-5 HO fluorescent lighting vs. pulse start metal halide

    From a height of 35-40 feet the lighting requirements (fc) can not be all that high if you are currently using 250 hps. However if replacing one for one and maintain whatever levels are currently present 200 pulse start will not cut it. Mean lumens of a 250 hps is 26100 while 200 pulse start is...

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