Galgrows said:

No keep it like it is now. Light burn causes all kinds of leaf problems and will slow down your grow. That looks good as it is. I've got some 2wk old seedlings i just placed under a 250watt and they are 50" away cause my lamp is set at 100% in my tent do to 4 plants in late flower. I'm real cautious about frying plants.
















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Thomasholdt said:

Hi all.
New grower here.
Feminized hybrid
Biobizz all mix
King bright 240w

I made the mistake of thinking that all that mattered was ppfd and therefore had the light 2.5 feet from the seedlings. I corrected the mistake as I felt they got leggy . I’m now about 18 inches away. But just wanted to share my progress one week from sprout. Should I push until light burn? Light at 40%

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Galgrows said:

No keep it like it is now. Light burn causes all kinds of leaf problems and will slow down your grow. That looks good as it is. I've got some 2wk old seedlings i just placed under a 250watt and they are 50" away cause my lamp is set at 100% in my tent do to 4 plants in late flower. I'm real cautious about frying plants.

Click to expand...

Thomasholdt said:

Hi all.
New grower here.
Feminized hybrid
Biobizz all mix
King bright 240w

I made the mistake of thinking that all that mattered was ppfd and therefore had the light 2.5 feet from the seedlings. I corrected the mistake as I felt they got leggy . I’m now about 18 inches away. But just wanted to share my progress one week from sprout. Should I push until light burn? Light at 40%

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edenm said:

Hi there, I have the same light am also a new grower. Could you share the distances and percentages that have been working for you for seedling veg and flower perhaps?

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LoveGrowingIt said:

As with most environmental changes, it's good practice to observe the plant(s) for a few hours to a few days before making additional changes. Light stress can be apparent within a few hours. According to the inverse square law (intensity ∝ 1 / distance^2) as it applies to light intensity and distance, the light power should be reduced when moving it from 30 inches to 18 inches, because the shorter distance will nearly triple the light intensity.

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