How to use a PAR meter to measure light levels in your grow room @Just4Growers
How to use a PAR meter to measure light levels in your grow room @Just4Growers
Uploaded December 2013 | Updated September 2026, 2 weeks ago
Ever asked yourself "How far should my grow light be from my plants?" - Well, here we test the light levels in our indoor garden with a Sun Systems PAR meter (aka quantum meter) to determine the proper distance.
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Everest Fernandez |

How to use a PAR meter to measure light levels in your grow room

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