Using LED Lights (w/outlet connection for linking up to 6 fixtures)

I've always wondered if it were possible or even efficient to stack lighting. Lemme give an example someone doing a small grow may use as many as 10 cfl bulbs to have ample light coverage. I was wondering if I have two LEDs rated at 500 ppm @ 8 inches, then, maybe I can gain ppm if the two fixtures are closer together. I won't be going for coverage by width only by depth. I was just trying to figure out: when used side by side how much ppm would be in the overlapping medium of light? Due to lights being angled not pointing just straight down.
 

brewbeer

Well-Known Member
Not quite sure of the geometry you are describing, but if two fixtures rated at 500 at 8 inches are pointed at the same spot 8 inches away, seems the maximum it could be is 1,000.
But a plant isn't a spot, and neither is the output of the lights.
 

blowincherrypie

Well-Known Member
If you put this thread in the led section im sure one of the nerds (I say that with luv) over there would be happy to write out an equation or some shit and explain it in a way that makes you feel... less inteligent. Im a pretty smart guy but a lot of that shit flies over my head
 

zypheruk

Well-Known Member
switch a light on see where it starts to fade and then place another light and overlap the first.
 
Well the reason I had the question is of course to maximize light one my plants. Evidently the light comes off my LEDs at an angle. They recommended spacing them apart.... Not sure why other than to let air through. Seeing as I have fans on the lights I can put them almost touching. Since I am using them so close this provides more light per square foot. I'll post the specs. I meant to say PPFD or umol not ppd lol sorry
 

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GoatSoup

Well-Known Member
From the chart it looks like you have a Vander brand "1000" light,actually about 140 watts? I've got one too and a "1500", actually a ~250 Watts from the wall). I put mine close together to spread the goodness over a wider area, ( 1 plant in a 2x2' scrog).
Not sure how much addition you get, but it does spread the light.
 
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