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Grow QuestionsLED light distance or PAR

LED light distance or PAR

BlazingSaddlesstarted grow question 4 years ago

What par are people using for each stage?

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GrowCNanswered grow question 4 years ago

I go by PPFD and use numbers similar to Albeginner420: 200-300 for sprouts, about 600 for veg and 800-900 for flower. Keep in mind that those numbers are based on 16 hrs light through veg then 12 hrs for flower. I downloaded a light meter app for my phone that gives me LUX. My light manufacturer has a conversion factor from LUX to PPFD for each of their lights. I divide LUX by the conversion factor (65 for my lights) and I get PPFD. Also, if you search for PPFD chart you'll find a chart that helps you work out how much light to provide based on how long your lights are on.

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Albeginner420answered grow question 4 years ago

200/300 seedling 400/500 veg and 800/900 in flower.

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Hempy_The_Kidanswered grow question 4 years ago

Your light should have came with literature. Most LED lights start at about 20 inches. From there your plant will tell you how far to move it or to bring it closer.

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