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stardustsailor Doesn't like 660nm leds.

SDS????? Hmmm, we'll have to see..........

Just for comparison, Mean Well LPC-35-700 driver. http://www.rapidled.com/mean-well-lpc-35-700-constant-current-driver/ $16.00

There are a couple of observations I can make. Under Pro-Grows, the plants grow pretty well, compared to HPS. Under NW XM-L's with some 660nm rebels, the plants seem happier and healthier than either the HPS or Pro-Grows. Over time I will be replacing 400w of Pro-Grow with 260w more or less of...

Please, do tell??????

Petflora, That's really interesting. I've been on V&B for 2 completions so far........... At the end of flower, I have been noticing the beginnings of seed pods at the base of some buds as well. I never saw that with Dyna-Grow. It could be something else.......I am not as good a grower as you...

Petflora="happy plants" Damn, your good......

Lots of good physics there, It kind of explains why discrete colors of diodes may not be the best choice. Wherever multiple frequencies of light intersect, the field and orientation of the photons will be turbulent. If this intersection is on a part of the plant???????? Could be almost as bad...

I put egg crate light panels under the rockwool cubes in the tray, the water drains right out. I still only have to water 1 time a day max. I do use the covers though. No algae or anything like that. Did have root aphids, but sent them all to root aphid hell...

If you can, you will be far better off building your own. http://www.rapidled.com (good, fast, cheap pick 2)

Here's the problem, When you feed a watt to a led that watt has to be dissipated, either through light or heat. The expensive leds do pretty well, as good or better than HID. Google XP-G2. Most led fixture manufacturers do not use these efficient leds, or very few of them, and if they did the...

Can you elaborate on the secondary photochemical reactions? I think that we are on the same page, but IMHO even if the blue and red were evenly distributed there would be many crossing lines/cones presented to the plant at the intersections of where the blue and red light meet. I believe that...

SDS, you are a wealth of information. Thanks you.............

The sick ones that are in the last set of pictures. Or is it one?

Can you describe specific symptoms of what this would look like? So if 3 color peaks make a number of harmonics, think of the richness of white light. The variability of the available energy at any given point in time. (Symphony vs two man band) Could be avoiding "square peg round hole"...

I'm going to get into that in in my thread in a bit. Clue: (the phase relationship is not fixed over space and time)

Petflora, what EC is that?????

What are the white spots on the leaves? PM?

IMHO, you should be watering only when the cube gets light. You want the wet and dry cycles. At the most I water once a day. fresh starters and veg, every other day or less. Also measure the ph and EC of the cubes at least once a week.

If you're a lazy stoner like me, you can buy them already done. Or put the HS in a drill press and drill away. (cake) Point of reference, I happen to have 3 drill presses and I just buy them pre-drilled. (rapidled)