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t-5 lighting

  1. Parts & Construction
    Is there a way to calculate how much brighter a T-5 is than a comparable T-8? For example, a 22" 14 W T-5 vs. a 24" 20W T-8? I ask because I am curious if a double strip with two T-5s might actually be too bright for plants mounted up near the strip (not Neos, of course :-) Thanks.