Success with LED and SPS

[chatyak]

If a PAR meter is used - it should also be put on electrical mode and not SUN I think... it will help a tiny bit - but overall it should be used as a gauge, even with the margin of error. Better than no meter I say.

[Reefer Rob]

I have an SPS PAR meter. Very special color changing indicators

[sphelps]

Originally Posted by Reefer Rob

I have an SPS PAR meter. Very special color changing indicators

That's the only indicator I would accurately rely on

[Aquattro]

Originally Posted by Reefer Rob

I have an SPS PAR meter. Very special color changing indicators

Agreed