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Old 04-15-2011, 03:30 PM
ProZachJ ProZachJ is offline
Join Date: Mar 2011
Location: Houston, TX
Posts: 30

It's not lux you want to measure. You want to measure Photosynthetic Photon Flux Density. (PPFD) I have some specific measurements of 400W hps, 400W MH, 126W Hydrogrow Penetrator and 126W Penetrator X-Lens. They are some cool graphs if anyone is interested in seeing them.
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