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There is much talk about these two when amending soil but many people don't know which kind to buy... is this an okay product http://www.amazon.com/gp/aw/d/B00G96ICW2/ref=ox_sc_saved_image_13?ie=UTF8&smid=A3QE8VKL4AY70C it's like the consistency of charcoal dust but seems very very strong.

Imo all those CREE panels are a half scam they use a few cree diodes then the rest some Chinese crap that's how they can say it is a Cree light because yep 10% of the light is crees.

Then go with cxa3070 you can't go wrong most efficient and grows some of the best plants. pm @vitamin_green_inc about it.

I would go with leds over t5s any day. Especially the cxa3070 you can run them in veg and also in flower if you want and they stay cool and are the most efficient.

If your worried about heat go with leds. A good setup using 300 actual watts will out perform a 400hps every single time. My 250w led outperformed the 400hps

@vitamin_green_inc I offered predd the same setup your using but for some reason he doesn't want the cxa3070 AB bin cobs.

Not really sure what your point is, if you even have one. Anyway theququestion has been answered i do not have time to argue with people like you.

Yes that is correct but it is mostly a marketing thing just like 90% of the cannabis industry

"but i noticed a lumen drop since day one... now id say theres atleast a 10% to 20% lumen loss due maybe to heat or low quality not sure but i doubt its the heat... most likely the bin" that is a quote from a Chinese build and they used a lux meter

@vostok he clearly said it was a freebie. I have never grown out that strain but have done lots of sweet seeds. They are very quality seeds and from my understanding what you have is not an auto but just a very fast flowering version that is all.

What's your question?

I have a bunch of the xpl's. I always like to dues a few simple tests before selling them. right now I have them in a veg cab that I will soon switch to 12/12 half is the xml2 the other half the new xpl. Both driven at the same amperage just from the human eye the light output from the xpl is...

Also in recent studies the Chinese cobs lost 15-20% of lumen ouput only after 45-60 days

If your on 100mm you can literally drop 5mg a day till you get to 80 then do 5mg every three days until your at 50 then 5mg a week till your at 2mg then go slow. remember mdone has a ridiculous long half life I believe it's 96 hours off the top of my head which makes it extremely easy to taper...

I've be considered switching my setup to a drip feed with my air pots. Does anyone have a link to a nice setup. I was honestly thinking about just using a big Rubbermaid and the smallest gph pond pump I could find maybe 98gph and just running a manifold with 1/4 flex line to either a drip per...

A tip for all the air pot owners. I water with one of those pump sprayers. Mine holds 2.5 gallons and i put it on the finest mist and just go from pot to pot watering each one for maybe 30 seconds. This way there is no runoff from the holes like you normally get with air pots. I've had them...

Just use 3070 leds

One of the hardest parts believe it or not was trying to find a driver with such a large gap between min and max vf. We were not satisfied and ended up building our own driver. So it would still work if it had only one cob or four cobs.

Basically yes each rail was live but only one side of the inside of the rail.

I would say closer to 3.5-4