Dimming LED question

Nutty sKunK

Nutty sKunK

Well-Known Member
I was wondering. If I dim my 600w LED to 300w can I have the plants half the distance away?

They recommend 24 inches atm. So at 300w 12’ should be ok right?

Cheers
 
Nutty sKunK said:
I was wondering. If I dim my 600w LED to 300w can I have the plants half the distance away?

They recommend 24 inches atm. So at 300w 12’ should be ok right?

Cheers
Click to expand...
Yes on paper at least its allegedly the same output, I've got a light meter coming over the next day or two I'll test it and update.
 
Thanks for the replies guys!

Will be interesting to see if it’s linear.

I can always turn it down if needs be as flowering plants tend to receive less light intensity during flowering.
 
Light intensity in not linear. The intensity is proportional the inverse of distance squared. So in your case if you reduce the output by 1/2 and reduce the distance by 1/2 the light intensity is doubled. change in light intensity (0.5) / change in distance squared (0.5 x0.5= 0.25). 0.5/0.25=2.
 
DaFreak said:
And why would that be?
Click to expand...
Like said, penetration. Inverse square law. Since the light is only half power to start, it will be 1/4 power at the same distance, compared to if was 100% power.
1629029483332.pngIf you start with more watts you end up with more watts at the bottom of the plant even if the light is farther away(to a point).
 
Nutty sKunK said:
I was wondering. If I dim my 600w LED to 300w can I have the plants half the distance away?

They recommend 24 inches atm. So at 300w 12’ should be ok right?

Cheers
Click to expand...
You’ll decrease the light’s footprint when you bring it closer too, so it covers a smaller canopy area.
 
its.always.420 said:
Not here to argue,
Have fun girls.
Click to expand...
No, you're here to act like a biatch.

Edit: I probably shouldn't say act like a bitch, but when somebody calls a bunch men "girls" when he walks out the door is not somebody who I can respect, especially not after the nonsense they spew. Maybe I should edit it and spell it differently, because calling men girls is not an insult but calling a bitch a bitch is probably one?

Edit 2: He read it wrong, the question is about hanging the same light lower with lower watts. Not at the same height, so before you start with the insults read a little closer.
 
Last edited:
everybody knows the inverse law. Which doesn't mean that a light hung higher up has better penetration. All things being even and you get the height and wattage right to give you the same par/lux take your pick at canopy, it's all the same. Unless you're talking coverage from a single point, but all the leds have several if not dozens of points of light.
 
DaFreak said:
No, you're here to act like a biatch.

Edit: I probably shouldn't say act like a bitch, but when somebody calls a bunch men "girls" when he walks out the door is not somebody who I can respect, especially not after the nonsense they spew. Maybe I should edit it and spell it differently, because calling men girls is not an insult but calling a bitch a bitch is probably one?

Edit 2: He read it wrong, the question is about hanging the same light lower with lower watts. Not at the same height, so before you start with the insults read a little closer.
Click to expand...
I sure do love that ignore button.
 
You must log in or register to reply here.

Similar threads

Z
Auto dimmer controller for led fixtures with normal digital ballast?
Replies
10
Views
2K
grotbags
grotbags
GemGrows24
Vivosun Areolight SE1000 , 100w with integrated fan
Replies
2
Views
424
Jimski
Jimski
C
CMH supplemented with LED - correct Spacing
Replies
9
Views
1K
Rocket Soul
Rocket Soul
aavi420
Questions about grow tent & lights
Replies
19
Views
3K
aavi420
aavi420
M
20 day old White Widow leaves ridges turning yellow?
Replies
12
Views
1K
Nutty sKunK
Nutty sKunK
Back
Top