GrowTest58 wrote:Good evening,
The details in the first post were my effort to answer possible questions people might have. Once I started I couldnt stop. I must admit I am excited both for the expectation of excellent results and for having this forem to give my opinion.
Anyway, I am thinking it goes something like this.
I have read that sunshine is about 5,000 lumins. If there about 20 lumins per watt. that would mean sunshine is 280w sq.ft. ???? WOW I am probably on the wrong track already. Anyway, since sun light is supposidly 23% blue 64w @ 400-500 nm, 26" Green 72w @ 500-600 nm, 26% Red 72w @ 600-700 nm and the last 25% is far red 70w @ 700-800 nm and the percentage of each spectrum that is utilized by plants puts the actual watts at closer to (TOTAL GUESS) maybe 10%.
If that is tha case, the spectrums of LED lights should easity be able to match the effects of sunshine for growing. If everything directly under the lights do well then I will have to say the minimum PAR should be the 644. If plants outside that 24" distance stretch or otherwise dont look as good as those directly underneath, then 644 PAR watts will be the determining factor for the depth of canopy to bottom of under growth to. If 12' is the minimum distance from light to canopy, then you are left with only 12" of optimal growth distance. I hope the results show that 644 PAR is more than enough. I am hoping for as low as 400 PAR to be sufficitnt.
#7
I do not perpetual harvest. I would like to but I have had problems with spider mites over and over which makes me go berzerk and clean everything and start over. They will never be a problem again for me. I found that lemon oil will kill the mites and their eggs while doing hardly any damage to the plants. 1 Application seems to do the job but I used it twice to make sure.
Anyway, I use the lights for full cycle, then maintain mother plants until I take clones for the next crop.
beefxer wrote:Welcome GrowTest58!
P.S. I recommend waiting until your LED turns off to take pics. You can see in my journal that lights-out pics are highly valued.
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