Led lighting for marijuana question

A question from a fellow grower:

I have a new Diamond LED Grow Light - DS200 - 100x3w - 300w - 11-band. Have six Northen Lights ,at 5 week of flowering under it, their looking the best I have ever grown. Was using eight CFL 26 watt in same closet. Was wondering if anyone has had good luck with LED lighting. Watts used LED 185 / CFL 8 x26=208.

For vegging marijuana plants LED’s are good but I have never seen anybody yield big and hard quality buds. Usually they are loose and airy because of the lack of light.

Basil

i was happy w/my led grow
it was soil sage n sour strain veged for 6 wks at 105w cfl 6500k
flowered at 140w led blue/ red spectrum with 4 28w cfl 2700k thats
252w for flower and 105w for veg it was scroged but had lots of problems from nute burn to bugs eating the leaves a few x had to spray with garlic soap spray that robert recomended on his blog and with all that i harvested about 2.5 ounces my grow space was 2ft x 2 ft and on top of it all was my first grow the buds at first were loose airy and harsh but after 1 1/2 wks something happened and the buds tightened up some hard as rock candy and the smoke became smooth as can be the smell can calm a angry lion in hot summer heat dont know how much that would be per watt but yes im happy and the buds r full of crystals also the buds are big most of them the size of my fingers and descent thickness some were huge bigger than my whole hand in length n width also leds produce much less heat than cfls i think if u use both together theyre awsome
however my friend used just leds amount of watts unknown no cfls for chocolope and cheese but produced about half of what mine did he spent 3x more cash on his led he got the 1 recommended by growweedeasy but the buds were beautiful dense hard full of long red hairs n full of crystals :stuck_out_tongue:

Good Luck. A grow Journal would be great. Many people woudl benefit from seeing someone that has invested in LED’s. I haven;t and probably won’t. In a small space; I think I would rather just invest in strong big CFLs

Ah, my Dear 'wood, I am going to change your mind about the LED’s with my White Widow Journal. This is my first grow with them; however, I have seen dozens of industrial sized grow rooms running god knows how many LED’s. Now…unless all of these videos are fraudulent (i.e. they moved the HID’s out and hung a hundred LED’s to sell lights (but you wouldn’t get much return biz that way)) OR LED’s are a viable alternative, and one simply needs to learn to use the (new) tool.
BTW - I think (she said, sheepishly) I know why my BB auto’s stalled. I initially over-watered (wasn’t used to using 5 gal container as ‘nursery container’. More people than not say to get the best yield, don’t transplant auto’s), and then let the container get far too dry on top. Because the little girls just looked so gosh darned healthy, I imagined that they had already tapped the deep moisture with their tap root. I think that this must be the case, but, nonetheless, it ain’t good to let the top 2/3 of container to get so dry. Fed yesterday 1/4 strength, watered until I got some run-off, and I swear (I hope) I see some new growth this morning, 8 hours later.

I figured yesterday that, as healthy as they looked, I didn’t think iut was from too much anything, butmust be a lack of something. K.I.S.S. principal, dontcha’ know.

Ah, my Dear 'wood, I am going to change your mind about the LED’s with my White Widow Journal. This is my first grow with them; however, I have seen dozens of industrial sized grow rooms running god knows how many LED’s. Now…unless all of these videos are fraudulent (i.e. they moved the HID’s out and hung a hundred LED’s to sell lights (but you wouldn’t get much return biz that way)) OR LED’s are a viable alternative, and one simply needs to learn to use the (new) tool.
BTW - I think (she said, sheepishly) I know why my BB auto’s stalled. I initially over-watered (wasn’t used to using 5 gal container as ‘nursery container’. More people than not say to get the best yield, don’t transplant auto’s), and then let the container get far too dry on top. Because the little girls just looked so gosh darned healthy, I imagined that they had already tapped the deep moisture with their tap root. I think that this must be the case, but, nonetheless, it ain’t good to let the top 2/3 of container to get so dry. Fed yesterday 1/4 strength, watered until I got some run-off, and I swear (I hope) I see some new growth this morning, 8 hours later.

I figured yesterday that, as healthy as they looked, I didn’t think iut was from too much anything, but must be a lack of something. K.I.S.S. principal, dontcha’ know.

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Their are some very good led’s out but expensive as hell. I got 2 X Mars 300’s each drawing about 145w X2 =290w. About 3 weeks of flowering so i will let you know. Or you can let me know.

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Hows that journal going? Just received 10 ( buy 5 get 5 free ) white widow. Got them under two mars led’s 300’s. Growing well. Im digging it. yeah your not supposed to transplant auto’s. That’s okay should hear some of the dumb stuff i’ve done. Haha.

Hi gang, hope everyone is having a great week. I love my L.E.D.'s! I used them last year for the first time on some autos and had nice returns. I am using a light called a Spectrum King 450. I have two of them@ 250watts each, and the two do a great job in a 4x4 area. The manufacturer says it is like having 1000 watt HPS equivalent ? I could debate this part, but I won’t! Just last week I purchased two new LED lights. Advanced platinum’s p600. Each one is suppose to be like hanging and800 watt HPS. They cover a 4x4 area in veg, and a 2x4 core area for flowers. Being I got two, I will have a core area of the full 4x4 for flowering. These lights are eight inches wide and almost thirty-six inches long. Would be great for a closet grow! I will give you a report when I get them up. I mean’t to mention that each light has it’s own built in fans. I was impressed at how quiet the fans are. I have been happy with LED growing and feel it does a great job! It is and adjustment to learn how to get your best returns from your plants. Most LED’s do not penetrate very deep in the canopy, so you want to expose as many bud sites to the light as possible. It’s late and I need to get in bed. Hope this helps some. Mike

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I found a line of LEDs that are very good and very cheap. They are King Plus brand . I am currently running two 800w in a 4x4 tent. They cost me $150 US each and are very solid with self cooling and metal boxes.



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where did you find them at that price? found some on ebay but they’re like $800+ each?

I found them on Amazon.com search for full spectrum led King Plus 800 w are $156. They say they are good at 36" but I am using them at 15". This reduces the footprint but kicks in growth. Two of them are doing my 3’ x 4’ sog just fine so far. I am saving my money for a 1600 w for $316 but I live on a fixed disability income so I have to harvest and not spend for a month or two. Got some WW coming for next round.

High Times listed these in their top five for bang for the buck.

http://www.amazon.com/Double-Specturm-Greenhouse-Flowering-Growing/dp/B01321JS38/ref=sr_1_58?ie=UTF8&qid=1460921986&sr=8-58&keywords=full+spectrum+led+grow+lights#customerReviews

thanks stomper found them for anyone else looking link is below :slight_smile:
http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dlawngarden&field-keywords=+full+spectrum+led+King+Plus+800+w

Welcome. If you want to see how they are doing I have a grow log under Budding With LEDs. They are on day 12 now so they just look like little white cockleburs but there are about 80 terminus bud sites so far😋

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reviving this old thread! i picked up a 1500W. very curious how your grow finished. i’m only three weeks into mine, all going well so far.

I have. I think ive hit on a really good setup with what ive currently got now. i found these fixtures on amazon. ebay has em too from the same vendor on both. they seem to work way better than those small box leds to me. not as many bands but they work excellent. each fixture costs about 130 bucks but well worth it but like any lighting when you’ve got good brightness you also are going to have to deal with heat. I found a good solution for that too with one exception is that I cant use carbon filters AND get enough ventilation to cool the tent properly so the house smells a bit like weed LOL. ive got two 6" inline fans stuck in the bottom holes of the tent pushing in air for both sides then I have a small window air conditioner with a heater duct taped to the front and 4 inch ducting to a 6"inline then into the top of the tent for cold air and simply have the two top side duct holes open to let air out the top. the key is having the cool air introduced from the bottom and exit the top so the heat is moved upwards to exit instead of downwards to heat the plants (see photos)

I use the light from MARS-hydro is very good.Look!