A Very Important Fact About Lighting For Your Plants

Gastanker said:

20 23w GE CFLs on each side of the room. Blue is brighter. Measurements are in fc. This is from an industry standard lighting CAD program.

The measurement of radiation directly below the compact group it is 689 compared to the other side which is ~120. Weird huh?

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..but but but.. The OP said lumens don't add up. Common sense!?

These scientist types must use a funny math.

[/sarcasm]

Thanks for disproving the OP gastanker. +rep

EDIT:

• You must spread some Reputation around before giving it to Gastanker again.
  
  
  
  

Well the OP is right in that you don't add lumens - you use them to calculate lux and fc. But to say that light energy doesn't add because the term lumen refers to a single light measurement from 1' away is absolutely nuts.

Here are a couple more. Same lights, same size room, same height... keep in mind that blue here is brighter.





Avg of 40 compared to an avg of 79...

Crazy - the room with two lights it about twice as bright.

This is all interesting...there are some amazing growers here on this forum.

my experience so far, and without sounding scientific,, there is a lot to be said for light intensity, but then again.. your branches must receive the light. I might just point out that a room which is cluttered with plants is much different (in termsof lighting) than an empty room.

I move things around a lot.. and that includes my supplimentary lighting...

If you're running 2 600w lights, there will always be that middle area (think 2 circles that overlap) the overlapping area will be receiving more than just 1 bulb thus will be getting more light intensity then say the outer edge of either single light.

IC3M4L3 said:

PMSL now wer onto bb guns ,.,,,from lighting,,now even i know comparing the 2 is a stretch

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Not when you consider that light is a particle. It's really a good analogy, assuming a vacuum and otherwise perfect conditions.

kpmarine said:

Not when you consider that light is a particle. It's really a good analogy, assuming a vacuum and otherwise perfect conditions.

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I think automatic shotguns of various gauges would be more accurate (to represent lights - not particles)

Gastanker said:

I think automatic shotguns of various gauges would be more accurate

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That would be a good example of the diminishing returns for a single light over distance (As you get farther away, the shot loses power/spreads out more.). Whereas the bb guns are more of an analogy for one light vs more than one.