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Using 2 240w in your tent would work OK. Using 3-4 would be preferred because under high light situations, the plant will not stretch and can grow amazingly COMPACT. I am currently using the equivalent of 3 240w in a 3x3 tent and I'm quite happy with my sativa results. My strain is...

I just ordered my 7th GH LH LED light. I am now self sufficient! :) At first I ordered the lights online through Ebay, but for my last 4 orders I called the company direct. I recommended this option because you will get a slightly better deal than an online order, and can chat with Victor or...

I just measured the power consumption of the LightHouse BlackStar prototype model and it consumed 280w -- which is great for me and my small space! I'm also using a LightHouse 2009 90w model, which consumes 78w, so in total I'm running 358w in a DR80 grow tent. :) -ThaiBoy

Just got the new light running and it is beautiful! Correction -- the name of the light is not "DarkStar" it is "BlackStar". I can't give you any real specs because the light I just got was a prototype, or production 1st run. Anyway, it came with zero documentation and the voltage sticker...

I have the light and love it! I think it is the best one for its price class. It's backed by a company in the US you can talk to and get advice too! -Thaiboy

I just talked to the folks at Gotham Hydro about their new "Darkstar" series LED grow lights from Lighthouse Hydroponics (http://stores.ebay.com/gothamhydroponics). The big news is they are now using 2w LEDs instead of 1w LEDs. Gotham has tested the new model and have found it to have the...

I think it's a deficiency. Increase your nutrients. I just had a similar looking problem and fixed it by increasing ppms. Yellowing leaves and reddening stems are signs of nute deficiencies.

I'd get the 2010 Lighthouse Hydro UFO model sold by Gotham Hydro. It has the best test results so far and is about the same price as the one from pendragonstreasuresinc.com. See...

Problem fixed. I was under feeding them, but thought the damage was from over feeding them. I'm at 1300ppm now and the plants are greening up and recovering nicely!

I just posted some pictures of my troubled grow on the LED users unite thread. I just got done talking to AN who suggested my nute ppm was too low. I just upped to about 500ppm. I'm trying to get DWC working for me...

This is my 1st DWC and LED grow. These clones were taken 1/19 and grew quickly in soil + LED, then I switched to DWC and things went bad. Early on I made many mistakes and almost killed my plants using tap watter letting the EC get to 2.0 and Ph to 8.0 while on vacation. I am using AN A+B...

I started with Glow Panel 14w. It's a good light from real company. I use it for side lighting now. Along with my Lighthouse 2009 an 2010 models, I have 194w total LED. I'm running pure LED now. One thing I've noticed is VERY short inter-nodal length. Anyone else out there using LED find...

I agree. I'm a scientist looking for new and better ways of doing things -- not the typical grower. I also want to grow my green in the greenest way. Believe it or not, this research we are all doing on LED grow lights may lead, in the future, to more efficient ways to raise food and allow...

The stats look good in my opinion too! But, for same cost you could get two or three top of the line 90w UFOs. Also, I read somewhere that 1W LEDs were more efficient than 3W and 5W LEDs. Any one know if that's true?

IMHO the LightHouse 90w lights from Gotham Hydro are the best. Based on GrowBoys calculations it puts out the most usable light and in the next issue of GrowBoys they will make a startling recommendation: Flower with put LED (using one 2010 model and one 2009 model). They are testing that...

...now if you could use the same LEDs used by Lighthouse, then you would have a world class light!

I'm rolling 294w pure LED in a small closet. I'm sure I have all the light I need! I have now have the LightHouse 2009 and 2010 models. In GrowBoys next issue, they will make a startling recommendation: flower with (1) 2009 model + (1) 2010 model. That's the first time GrowBoys will have...

I just got this e-mail today from my ongoing discussions with Gotham Hydro. These numbers are supposedly from the latest GrowBoys research which will be published in January. Here's the entire e-mail, less the headers: "My comment about the blue/uv 425nm is that technically it is not in...

Here's the best single graph I've found on the web so far that shows plant reactions to different wavelengths. http://course1.winona.edu/sberg/ILLUST/fig15-5.jpg

Great job with this thread! I own the 2009 and have the 2010 model on order. Very happy thus far...