Led Users Unite!

It has nothing to do with your choice in light(I support A51 too)...it has to do with saying something negative about a product you don't know anything about about or haven't even actually seen/touched one. I would have defended the CLW solar flare too but I don't actually know about that part(heat) for them so I don't say anything. I understand you were hyped on your new lights/choice...but no need to get a quick bash on what you didn't choose, is what I was defending. I mean this in the friendliest way possible so I hope you don't think I'm being a dick. There is just a lot of hostility and lack of professionalism in the LED industry, and we the users don't have to act like that too.

Wow that is high humidity. That RH will end up being a bigger problem for sure. Shoot for 40%-50%... 60% tops if that's all you can do. That high RH also has to do with your high heat issue. The portable AC was a good move for sure since they have a dehumidifier too.

Apologies if my etiquette was below par. It was simply something a user told me when comparing their use with those lights.( i think its in the "new to led and needs help choosing what to buy" thread) It was unintentional if anything, I'm new to LED and just got back to growing recently and yes very excited! so I might let that get the best of me at times.

Yeah the girls dont like the humidity like that, and it makes the heat tough to control, Grow area is at 77F and 65 RH and dropping. Very happy with the portable ACU! Just hope it keeps running like a champ and keeping those girls cool. I also just want to keep a sustainable temp/ rh between like 5 degrees not 15. I also ended up just throwing it in the window to let the heat exhaust outside and cool the whole room not just the grow area as I was worried the direct cold air from the unit could potentially shock the girls. I dont know but i wasnt going to do all that work just to find out. Wish me luck! Edit: Just threw the third light up, all only running whites, and the temp in the grow area went up 2 degrees, So i bumped the temp down to 76 and left the room, Gonna go back in about 20 to see where its at, the rh was right at 60 even with temps up a bit, so im glad thats continuing to go down! Gonna throw the last one up for flower only, and then hit the switch, btw,tags is there a certain time i should flip the switch to red, I just figured as soon as i change the light cycle to 12/12.

^^^ Tip of the hat my friend. I was jumpy on it too. My apologies as well.

I don't exactly know when to flip them on. The obvious answer would be at flower/flip. But me personally, I would put 1 of the 3 you have in there on(reds) for veg. A51 uses a warmer white(outdoor) and it does have red, but I think having a little more red is a good thing when you have multiple panels like you.

And 76-84 is great for led's IMO.

All is well my friend.
I might do that, might just wait... I dont know yet. With three I can turn the middle on and that will be some supplemental reds for all the plants. Its looking like 75-79 all day right now with the setting on the ac, but the humidity has already jumped up to 70% with lights off and the temp turned up a little on the ac.. so thats no bueno, should be easy to cut down in the morning starting with a cool room. a little progress is still progress! hope it gets a little better towards the end of flowering, which will be fall sometime i at the latest.

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hi Guys.. im new in here.. im using 2 Led's.. matrix m200, and marsgrow 350R1.. the 350R1 is on this Picture..

Hey guys, just a updated for those who are interested. I originally estimated I'd have 6oz of the PE... actual dried weight 163g or 5.8 oz!! Not bad for a one plant harvest!

Nope not bad at all

ReefBongwell said:

Nope not bad at all

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My best haul yet!!! I plan on doing better and better Thanks reef!!

Now running 600w vs 1K vs 720W (435w draw) LED... not so much because i wanted to do a test... as that I needed more light and can't afford as much LED light as I need... the sad and unfortunate reality of LED growing for those who aren't raking it in I'd have had to spend about $3k to add the same amount of LED light. What I find interesting is that to me, the LEDs are the most intense part of this vid... but look how many I'd have to put in to get the same intensity for the entire grow LED manufacturers are killing this field with their markup.

[video=youtube;1iOpqIrlBn4]http://www.youtube.com/watch?v=1iOpqIrlBn4[/video]

What's up guys I'm new to this hole forum thing but I think its pretty cool and I can always use some input, so on that note I'm running 4 four foot T-5 florescent bulbs, one 90 watt tri-band UFO by agromax and I thru another 90 watt htg red led in there as well before I had this going in my small 3×2×5 group tent but I recently converted that to a 400watt hps tent for my auto flowers do to lack of sucess with led. Anyway.... my grow area now is my closet... roughly 2×6*10 but my leds hang 18 inchs from my germies with the T5s on mounted up the wall in front of them stopping with the last bulb stopping just under 2ft. For my plants I have a dinafem deep cheese ,one big buddahs budda tahoe , one Barney's farm 8ball kush. That where started 7/11/13 also I have a g13 pineapple express that is over a month old that has been dormant for over a month just now coming back to life! I'm running cocoa core and per lite for my medium in 2 gallon grow bags and 1 gallon pots iv startd to give the 8ball and the Tahoe roots organic nutes just the grow the trinity and ancient amber but only like 3mls of each remember the just startd on the 11th but the pineapple is a hole different story it seems to be coming back maybe if I can post a pic some how some one can help ! Lol I'm on the Android app. Just now getting the hang of it so this is kind of my first post! Any on have any in site for a brotha!! Please and thank you

southpatgrowers said:

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just wantd to add I need to know what type of light schedule should I keep if I want to invest in more leds and continue into flowering in my closet if I fixed it up a little nicer rather then switching into my tent to flower them under the 400 watt hps ...I just took a video and am trying to figure out how to post it to this thread.... do I have to post the video to YouTube or something first to get a URL??? I have no idea but the vid explains it all! Lol

Chinese made Mars grow rated at 480w of actual power draw at full spectrum, pic is 2 and a half weeks of flowering, so far happy with results, this light has the uvb as well.
light cost $388 plus shipping and customs charges, total about $600.View attachment 2746857
I will know more when I harvest in a few weeks will post the overall results. so far so good!
using with DWC and SCROG
amnesia haze, la confidential and king kong 5 from mano verde
I belevie that leds are the way to go, cosidering how much you save on electrical bill, no ac needed, cool running, less bugs, etc...
I took the plunge and risked my money but it looks good
other comparable lights from US or UK costs over a grand plus shipping... big difference in price
if I can yield anywhere from 10 ozs to a pound from these 4 plants I will know that these lights are the real deal.
good luck to all, looking to learn and contribute, peace out homies

[h=1]Led grow lights vs HID[/h]Not every light is created similarly. And neither are LED lighting! At least not so far as plants are concerned. After discussing this matter having a few PHD professors from Cornell University, we were directed to a couple studies. Below is a precise chart of light range usage by plants.
[h=2]Led grow lights vs HID wavelength spectrum[/h]

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Details can be found at http://course1.winona.edu/sberg/308s05/Lec-note/15-new.htm​

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What does this mean for the indoor grower? This is the wavelength spectrum of white light that plants use. So how does this affect our analysis of HID lights? Below are the light output spectrums of the most popular HPS and MH lights in the market.

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The graphs speak for themselves. Neither HPS nor MH provide much lumen output under 580nm. This means that the largest portion of lights used by plants 420nm-455nm is not supplied by either light solution. The peak lumen output is 580nm, 595nm & 615nm. As you can see, that translates into a loss of about 83% efficiency when overlaid with the light used by growing plants. Thus, a 40,000 400W HPS bulb translates into 6800 actual usable lumens. These charts are available from the manufacturers and widely distributed, touting that they are closest to the natural light output of the sun. Thing is, plant’s don’t use all of the sun.
There are mitigating factors. Our friends at Cornell have informed us that a healthy plant gets the most vegetative boost from blue and ultra-violet wavelengths. We have long known this in the industry because traditional success dictated that vegetative growth is done under MH lights (more blue) and flowering is done under HPS (Red) lights. The later in leaf diameter is outlined in the study attached below:
http://www.sae.org/technical/papers/2001-01-2272
The final analysis is that the most successful growth is found at 420nm, 450nm, 630nm and 660nm wavelengths. There are ideally 4 peaks of growth spectrum. Red is slightly more important for flowering but blue produces faster growth and absorption. It is also important for plants to get more 600nm-630nm wavelengths because it is reported that those wavelengths determine leaf diameter. Larger leaves will make a larger plant. And who doesn’t love a big tomato plant! Larger leaves lead to larger surface area for further absorption, etc, etc.
Since LED’s produce a fairly uniform output +/- 10nm we concluded that given the correct wavelengths, LED’s could possible do the job if they lumen output was great enough and they had the correct spectrum.
In our 2009 LED Growlight Showdown, our winner (Lighthouse Hydro) employed a unique LED. After our analysis, we concluded that the reason for the win was the use of a mixture of 630nm UV/Blue LED’s rather than the traditional blue 660nm LED’s used in all other LED systems tested. This is confirmed from the spectrum usage graphs above.
[h=2]Led grow lights vs HID Lumen[/h]So in usable lumens we have the 5010 lumen 90w LED from Lighthouse Hydro vs the 400w 6800 lumens of a Sun Agro bulb.
LED= 43 usable lumens / watt HID = 17 usable lumens / watt
Yes, the LED is superior but based on lumens/watt alone a 90w total output is not equivalent to a 400w HID light.
On Lumen output alone, a 90w LED does not match the 400 HID light system. In usable lumens alone the conversion is more like 90w LED = 320w HID (HPS/MH)

Thinking about making a veg box with a spool of LED that I came across it has about a thousand individual lights on it running at 12 v~ ,I will be using a power converter that reduces 120 to 5/12/24 v~ .
any ideas on how I would go about this?also these LED are a strip with a 3m sticky backing very low profile

firecorner said:

I will be using a power converter that reduces 120 to 5/12/24 v~ .
any ideas on how I would go about this?also these LED are a strip with a 3m sticky backing very low profile

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With those LED strip lights, you can just solder the leads directly to the exposed wires from the 12V DC end of the power supply. If you need to cut the strip then it's trickier but I'm sure there are guides out there. If it were me, I wouldn't connect them to a supply which can deliver 24V just in case the switch gets bumped and they all fry.

I would stick them to something metal, ideally a nice big heatsink. They're not the most efficient, but it's been proven that the 5050s can grow real bud on a small scale: https://www.rollitup.org/led-other-lighting/567470-chronikoolz-stripped-lite-peep-show.html

Wow! this tread never stops! =) I have been away for awile but have added many pieces of info hundreds of pages back! Nice to see the popularity of LED's growing big time. =)

Adding my second 240W Tao Tronics to my room today. Feel free to peep into the grow in my sig. So far I'm loving these units.

I posted this in the other led thread but it prob should be here.

I'm pretty new to growing and have had limited experience, I wanted to try an led but there was so many companies out there, I was afraid to get ripped off. I was lucky enough to find this board and finally bought the new version area51 light. Jeff's accessibility and honesty convinced me to buy his product. Sorry I don't have any pic's to put up but I grew the same plant under his light and actually 2 of the same plant under a 150 watt hps light. In the end I was quite shocked, the area51 led out performed the hps. My led single plant actually produced more quality bud than the other two plants together under the hps. Plants were grown in the exact environment, each had a 2'x4' grow tent. These plants were veg'd under t5's so only flowered under the led and hps. That aurora indica from nirvana was a great looking plant under the led. Will buy a couple more of these lights from Jeff.