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RIU is blessed with some pretty astute readers and contributors. But I've always believed that when considering the variety of grow lighting technologies it has been a real challenge for the average person to determine what it is they need to understand when comparing different grow light...

No matter what grow lighting technology you might favor for your garden there are 4 basic performance factors to use when comparing between them: Photosynthetic Photon Flux (PPF): the total number of photons the light emits. Spectral Power Distribution (SPD): An SPD graph will show, In...

I'm starting this thread at Day 23 from rooted clone (Day 18 of flower). I have 20 plants with a mix of Smash Berry and Blue Dream in 5 gallon buckets. The buckets are being bottom fed on a flood and drain system from a fish tank filled with Tilapia. I'm using lava rock at the bottom 4" of the...

Hi everyone! It 's good to be back! I've been growing cannabis with aquaponics now for about 4 years. What I'd like to demonstrate now something I've been working on that is a strategy farmers can use which I believe will optimize annual crop production values, on a gram/meter basis, by...

Being in So Cal there is a plethora of deals to be had on old Conex shipping containers. You can get a 40' in reasonably good condition, for around $2,500 that won't leak, much, and will close up as tight as a ducks butt. I've seen other 'modular' building grow rooms that went from trailers...

Last week the University of Arizona had a gathering at their Controlled Environment Agricultural Center. The presenters were academics in the field of plant lighting and a smattering of industry peeps that shared their thoughts on the future of SSL in horticulture. The boys from IG where there...

Found this company on the International Artificial Grow Light Association FB page. Anyone here running these? They list their 1200 watt model for $1,350 which if anyone is having results with one I'd consider running one. http://www.truthlighting.com/products

I see the Illumitex NeoSol DS rated at 520 watts and going for over $2K. Is it justified? Can't find much in the way of anyone documented running them so I've got to ask. Where are the gardens? http://www.illumitex.com/illumitex-advantages-cannabis-cultivation/

http://www.bendbulletin.com/business/1976469-151/smart-grow-technologies-switches-to-led-grow-lights#

LED panels have been around for over 10 years now and each generation continues to improve on previous versions. While the hobbyists are getting it what is it going to take for the LED panel manufacturers to really compete with HID in these larger commercial grow ops? Any thoughts on what the...

I really don't even know where to begin with this. http://www.gettogrow.com/what-is-indosynthesis/

These are not your fathers polyacrylamides...ie Monsanto, Krilium et al. http://www.inda-gro.com/pdf/ESCTreatment.pdf MSDS @ http://www.inda-gro.com/pdf/MSDS-ESCTreatment.pdf Kinda makes you wonder why more people haven't even heard of these products. Samples are free until they're not...

I have enjoyed many spirited discussions with members on this and other forums re the way plant lighting systems are field measured and how manufacturers publish their lamps output data. As a direct result of these discussions I recently was asked to help contribute to a paper that proposes how...

Some of you may already be well versed in this from different perspectives so I thought I'd throw it out here for discussion. Recently I was introduced to a discussion that centered around how humans process light by means of a third ocular photoreceptor that had not previously been recognized...

If you have any question as to how safe is your current main electric service, if it will safely handle increased grow loads then this is the place to drop some photos and get some feedback. The problems that can occur should be considered from the point of incoming electric service on the line...

Maybe I'm doing something wrong on my search but I don't see alot of advice on the use of light movers. I'm going to try and cover a 20' x 10' area and was thinking it would take two lights instead of the four I'd usually use to do it. But then I was thinking the ends would not get as much...

It's come to my attention that the LED industry has a new technology they are going towards that is called Organic LED which has been shortened to OLED. The purpose is to develop an LED lamp without such a concentrated beam spread and diffuse the light out such as a fluorescent would do. So...