Need help with understanding LED lighting

Tyrone Smith

Tyrone Smith

Member
I am not new to the growing game but i am new to the cannabis grow. I have never used LED lights before and really need some help laying things out for me. I know its all based on the spectrum of light compared to how many kelvins. But other than that I am at a lost.​
 
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anzohaze

Well-Known Member
Ask @sunni or a mod to move this to led section for help. Plenty will help but as reading in the led section will have everything.land out to read for you
 
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az2000

Well-Known Member
Tyrone Smith said:
I have never used LED lights before and really need some help laying things out for me.​
Click to expand...
The main thing to keep in mind is that the LED grow-light market is extremely predatory, flim-flammy. You definitely want to spend some time in the LED forum.

All the inexpensive fixtures you see on Amazon and eBay are not worth the money. They use inefficient epi-whatever diodes. To get dense nuggets you have to run about 50w/sq ft. (I've seen people running 90w/sq ft with them).

At that point the question becomes: why are you choosing LED? Because, T5HO and CMH are better choices for shorter and taller grows, respectively. About 40w/sq ft for T5HO in a short space, 35-40w/sq ft for CMH.

For efficient LED (running about 25-30w/sq ft) you pay more for fixtures like Area 51, Tasty, Johnson, growgreenled.

So, the first question should be: why are you considering LED? What are you trying to accomplish? Reduced energy consumption? Cooler operating temperatures? Or, just the sexiness of "high tech?" (which seems to be what motivates purchases of the eBay/Amazon lights).

FYI: Duplicate thread: http://rollitup.org/t/need-help-with-understanding-led-lighting.894786/
 
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