OneHitDone
Well-Known Member
I am skeptical that 4 of those per shelf is going to lay down 300ppfd.
I bet it would take at least 8
I bet it would take at least 8
Microgreens Grow Help
- Thread starter Seriousbuds
- Start date
OneHitDone
Well-Known Member
Just look at something like the Nextlight Mini with the "strips" slapped side by side. With 6-8" between strips there is no way your going to get those par #'s
http://getnextlight.com/nextlight/index.php?route=product/product&path=62_69&product_id=54
http://getnextlight.com/nextlight/index.php?route=product/product&path=62_69&product_id=54
JorgeGonzales
Well-Known Member
Well, my math was fast, but 4x 48 inch channels, 4.625 inches wide, close together for micro greens, is about 48*4*5 inches, or 6.67 sq ft per shelf, right? .62 meters?
Sooo...That's about 13200 lumens over .62 meters. Let's be conservative and say 13200 * .014 = 184PPF. 184/.62 is...296PPFD.
It's damn sure in the ballpark, unless I fucked up my math.
JorgeGonzales
Well-Known Member
Hell just divide 100/8 and see 12.5W/sq ft and that alone tells me it's close.
OneHitDone
Well-Known Member
Ok, forgot the skinny shelf thing lol
Was thinking 4ft wide
JorgeGonzales
Well-Known Member
184PPF out of 100W is real close to the NextLights numbers actually. That's good stuff.
Seriousbuds
Active Member
I really like this idea man, great find!
How would you most effectively power these? I'm trying to avoid having 12 power strips daisy chained together
It puts me at about 1,400 watts which gives me plenty of room to fuck around with strip lights if I decide to throw ~$60 on a few hundred feet. I may as well, I see every major production indoor farmer is using these blurple lights so there has to be a reason they aren't running COBs, right? Unless it's just too dam expensive, which is a very likely possibility...
OneHitDone
Well-Known Member
Apparently Blurple is still the most energy saving spectrum of led?I really like this idea man, great find!
How would you most effectively power these? I'm trying to avoid having 12 power strips daisy chained together
It puts me at about 1,400 watts which gives me plenty of room to fuck around with strip lights if I decide to throw ~$60 on a few hundred feet. I may as well, I see every major production indoor farmer is using these blurple lights so there has to be a reason they aren't running COBs, right? Unless it's just too dam expensive, which is a very likely possibility...
I'm still waiting to see led put out something like this efficiently
OneHitDone
Well-Known Member
You can build your nft channels out of vinyl downspouts. It works greatAfter re-evaluating my space and consulting with my girlfriend, she's okay'd a bigger setup. new plan is three shelves, each channel is 4ft long and my total allowable grow width is 30" wide
(I'm actually unsure what I'll end up getting for the width of channels, because I'm looking at chinese knockoff suppliers... NFT channels are expensive!! shipping is the real killer..)
So a total of 98 channels and 14 shelves to light. (the math is weird because I'm building one 6 levels high, and the others will only be 4 levels high.)
My current thought is buying LED strip lights like this http://www.aliexpress.com/item/5M-SMD5050-Grow-LED-Flexible-Strip-Tape-Light-4-Red-1-Blue-4-1-Aquarium-Greenhouse/32564130674.html
It would be the cheapest option by a long shot.... I just can't find anyone who's tried micros with strip lights, so i would be a guinea pig
OneHitDone
Well-Known Member
What would the math work out to on the new 1" profile? (you have all the calculation process dusted off)
http://www.heatsinkusa.com/1-000-new/
If they would work even cheaper yet
JorgeGonzales
Well-Known Member
Man how high was I when I did the heatsink math? I multiplied feet * $0.32, not inches.
Yeah I'd go with the 1 inch profile, and it will cost...$430 plus shipping? That makes more sense. Nobody should ever trust my math.
So...figure $30 per hundred watts of power as the Meanwell average, $40 worth of strips, and $30 worth of 1-inch heatsink per shelf.
That's exactly a dollar a watt, which is cheap by any standard.
Yeah I'd go with the 1 inch profile, and it will cost...$430 plus shipping? That makes more sense. Nobody should ever trust my math.
So...figure $30 per hundred watts of power as the Meanwell average, $40 worth of strips, and $30 worth of 1-inch heatsink per shelf.
That's exactly a dollar a watt, which is cheap by any standard.
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OLD MOTHER SATIVA
Well-Known Member
the 20w 3500 k led tubes we just bought were 16$ canadian delivered so less than 12 usd..thats like .60$ per w
i will get back to you on these .[.it will take time but] they sure look ok..
i will get back to you on these .[.it will take time but] they sure look ok..
JorgeGonzales
Well-Known Member
Oops, deleted my response, but these are the same profile as the 2 inch, cut in half. So should be perfect for our 12-14W of heat.
JorgeGonzales
Well-Known Member
Well, the nice thing about the Samsungs is the 140+lm/W numbers...so I guess we should be taking that into consideration with comparisons. I know the lights @nevergoodenuf linked are similarly efficient.
OLD MOTHER SATIVA
Well-Known Member
yes those samsungs are cool
the tubes we got were 122klm/w..
but they are totally self contained units ....that easily link together...
its pretty darn handy and cheap
the tubes we got were 122klm/w..
but they are totally self contained units ....that easily link together...
its pretty darn handy and cheap
JorgeGonzales
Well-Known Member
Those are impressive numbers with the driver built in. Link?
Seriousbuds
Active Member
OLD MOTHER SATIVA
Well-Known Member
that is a retrofit light..jorge
hongda-led.com
T8 Single Tube light without fixture:
LED tube light,T8,4ft,20W,2400Lm,3500K,AC86-277V,warranty time:5 years
under 5$
we removed the globe and got 50% more lumens
hongda-led.com
T8 Single Tube light without fixture:
LED tube light,T8,4ft,20W,2400Lm,3500K,AC86-277V,warranty time:5 years
under 5$
we removed the globe and got 50% more lumens