E-mail - The Standards Questions about LED's

Good Afternoon Doc,
Perhaps you can help me. I am considering starting an indoor organic garden. I hear many sides to these new LED systems being more efficient in power and yields. I am considering buying your recommended 300 Watt High Powered Tri-Band LED Grow Light. How does it compare to this 357 Magnum LED who claims he has 119 x 3W Bridgelux Diodes that only consume "180W" and are superior to any other LED system on the market. Why does this sound so ridicules and how is it possible so many people say conflicting statements? The companies are like children bashing each others' claims. I tried doing sufficient research but have been unable to find a superior legitimate LED growing system for a plant's complete life cycle. Are there transformers out there changing the game? What makes one different from the other. What are the most important features to look for?
Another grower says the 4 wavelengths is old technology.
Can you please give me your honest non-biased input. I am considering growing in a 4x4 area in a dark corner of a room.


As you may know, plants absorb light energy in certain wavelengths. To put it simply, wavelengths are seen by humans as colors, and the two most important colors (and indeed essential for growth) are red and blue wavelengths. These wavelengths are measured in nanometers (nm). HOWEVER, what we see as red, is not always in the exact best wavelength for plants to use. For example, if a plant absorbs red at 660nm and that makes it grow the best, our eyes would not be able to tell if a red LED was really 650nm or 670nm. Here is some important information, the cheapest LED’s are one’s that don't work as well or at all for plant growth because the emit what looks red to our eyes but is not the actual wavelength that is best for plants.
The problem, or benefit of LED"s is that they can emit light in such a specific wavelength, where as an HPS or MH emits light in all the wavelengths from red to yellow orange blue etc.. This means if you get the RIGHT LED you are saving energy by only using only the optimal wavelength of red, where as if you get the WRONG, CHEAP LED you are wasting time by not growing plants in the best environment.
I have never had the opportunity to test any of the lights, other than the one's you mentioned from HTGSupply.com. I do know all Tri-Band lights work great in all stages of plant growth, I have shown this in many blog posts. The Tri-Bands are emitting red and blue in the RIGHT wavelength. You might be able to get by with the 120W starship light, but the 300W will be good for a 4x4 area.
Good Growing,
Dr. E.R. Myers

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