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Found an interesting link regarding LED light testing.   The piece is by the owner of a grow store, Growershouse, in Arizona.   While he may have a commercial interest in promoting one light over another, I have in the past found him to be honest.  He also has a youtube series,  Grower's Network,  with fascinating interviews on some of the commercial grows and individuals such as Scott Reach, Rare Dankness owner.     As an aside, his pricing use to be good, 3 yrs ago, but local hardware and nutrient pricing here in MI have dropped below his online prices.  Anyway, for what it is worth....

https://growershouse.com/blog/led-grow-light-ultimate-comparison-review-using-light-laboratory-data/

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18 hours ago, semicaregiver said:

Found an interesting link regarding LED light testing.   The piece is by the owner of a grow store, Growershouse, in Arizona.   While he may have a commercial interest in promoting one light over another, I have in the past found him to be honest.  He also has a youtube series,  Grower's Network,  with fascinating interviews on some of the commercial grows and individuals such as Scott Reach, Rare Dankness owner.     As an aside, his pricing use to be good, 3 yrs ago, but local hardware and nutrient pricing here in MI have dropped below his online prices.  Anyway, for what it is worth....

https://growershouse.com/blog/led-grow-light-ultimate-comparison-review-using-light-laboratory-data/

Nice. Looks like the Gavita has the best 'spread'. Yet it isn't the best in many other testing results I have seen. Too bad they had to only use expensive lights in the test. They said it was because the testing is expensive too! Sounds kind of biased to me. 

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I was surprised Fluence did not come out on top.  Not due to the $, but as I understand it they are a part of Sylvania/Osram.  One would think that they would have access to the best lighting technology out there.

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The whole idea that they had to only use these expensive lights is suspect. 

Then the gavita comes out on top when it's obvious to anyone who has been researching them they don't produce the better 'spread' that is displayed on the testing results. Everyone wants that 'spread' of PAR. You can get the best spread by daisy chaining the cheap ones together for the perfect overlap. Modular is the better way to go. 

What a savvy LED light researcher comes out with from this 'lab testing' is that Gavita paid for it and they are scared that lights costing half as much do the same thing. 

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From an indoor grower and inventor's point of view;

What we need is a reflector that bounces all the light around so that the total footprint is the same in any prescribed area. 

No single LED light points straight at the plant, they all get bounced off a reflective surface so their output can be 'shared' on the whole grow canopy. Or a very well thought out disco ball with thousands of small reflective surfaces that match the pattern of LED lights on the fixture. Making the distance the light travels from each LED the same to it's place in the pattern on the canopy. The problem they have right now is the travel distance to the outer edges of the canopy. 

A hint at what is needed is the sun and our ozone layer that disperses the light so all we need is one source of light for the whole planet. 

What we really need is a 'smart reflector'. 

Edited by Restorium2

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