Tag: grow light distance

cannabis growing lights

What is the best LED grow light hanging height?

May 29, 2024 Published by



Check out our blog post with all of the methods and grow light height charts listed in detail: https://migrolight.com/blogs/grow-light-news/how-high-to-hang-your-grow-light-for-maximum-yield

I share with you my experience on how close LED grow lights can be hung above plants.

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cannabis growing lights

Grow Light distance from plants | Efficiency Vs Uniformity

April 26, 2022 Published by



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The best grow light distance from plants is a compromise between:
Hanging the grow light as close to the plant canopy as possible to maximise the amount of light reaching the plant (most efficient grow light setup)
&
Hanging the grow light high enough to distribute the light evenly across the plant canopy (for best uniformity)

I use PAR charts generated by @LEDGardener on his PPFD test website, https://ppfdcharts.com/
For the following grow lights:
Viparspectra XS1500 in a 2×2 or 60cm x 60cm grow area
MIGRO ARAY 4 PRO in a 4×2 or 120cm x 60cm grow area
Spider Farmer SF7000 in a 4 x 4 or 1.2m x 1.2m grow area
HLG 600Rspec in a 5 x 5 or 1.5m x 1.5m grow area

In each test I look for the maximum PAR to be in the range of 1,000 to 1,100 µmols/m²/second and the lowest PAR reading, usually in the corners, to be no less than 60%of the maximum, ideally 80% for the best uniformity.

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