Yeah, I'm with you up to there (it ties into the ODNO fanatics that are throwing it onto their planted tanks), but it doesn't jive with my experimental results. My NO and HO T5s were both on the same ballast with a single lead each and the HO was spectacularly brighter. Is this possibly a trick with the T5 design? I know there's "something" different about them than just being a smaller T12 tube.
Or should I just hook up a meter and see? I assume ammeter in series between 'hot' lead and the bulb should tell me what I want to know?
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