Probably sounds newbie, but isn't the point of LED's to only emit light in the red and blue spectra so as to maximize the most absorbed light bands? Doesn't this new trend of using white, UV, IR, orange, yellow and green diodes fly in the face of this oft-stated goal?
IMO the point is to emit the light the plant need, if that is red/blue then yes, but it don't seems to be enough to grow dank Bud`s, seems like it need more then just two wave lengths so to speak
so it might more be a question on "removing" the bands they don't need, like yellow and green, tho even yellow and green seems to have a impact on the product/quality
IMO the great thing about the Whites LEDs is that they cover most of the spectrum, so your pretty sure to hit the "right" bottoms" and if you support them whites with some of them we know work/is highly needed, like the red/fare red (630/660nm) we can get a great product with less power and heat then HIDs
I love my 6500K LEDs in my fixture, I see it like having "T5HOs" in there
but with the penetration like HIDs
as I see it its all about getting the plant optimal light with as little power used as possible, but not a minimum of power, I don't need to grow hugh plants with 50W used, Im happy to use 280W, as long as I can get the same product as a 600W HID with less heat and better wave lenghts
just my 2€