Again, I am not qualified to make any assumptions or suggestions on the subject, but still I can't keep my mouth shut.Other than the heat, electricity and possible stretching, is there any reason to NOT run the red all day? Or more pulses during the day?
I'm looking forward to getting the 660 lamp but not till Sept. 3-10, must have sent it on a boat. I'm running my UV bulb for 4 hours in the middle of the cycle so I should be getting more blue then, just like midday outside. Couldn't find documents on my brand UV but did for a competitors bulb that tested the same, supposedly rated 6500k.View attachment 2788828View attachment 2788830View attachment 2788831
1-2 weeks to go. Captain- I like your 660 supplementation. This grow just has the red at AM/PM. Next grow we might have him look at 660 also during the day. Then the halogen blast in AM / PM as he's doing now.
Wondering about blue...
Part of the problem is sourcing certain spectrum's to experiment with. I tried to find 680 nm and was told by a supplier that nun of the major companies make it and it was a custom order. This was confirmed by Bill at growlightsourse that told me his 660,680 combo was custom and he didn't know of anyone else using that. It's the chicken or egg thing, major companies won't make it unless there is demand and you can't generate demand if you don't have access to prove it's worth using. Some say 660 and higher deep reds are not that important but I think they play a role and it's just how much is the question,my 660 nm light is on its way. By the way,Steve's LED now has 3 watt 730-740 nm LED's that can run at 700 ma.On another forum, my friend Weezard commented:
730 nm. will cause stretch.
635 nm. will make buds.
652 nm. will make large, tight buds.
Those of you that know him I'm sure respect him as much as I do. With respect to his comment about 730, he's referring (not reefering) to constant 730, not to its use as AM / PM burst.
Here's what Supra did: (I added the wavelengths)
Oslon SSL80 deep red 3T bin (ISLED) 4T bin available possibly this fall 645nm
Luxeon ES deep red EX6 bin (stevesLEDS) 660-670
Luxeon ES deep blue M4R bin (stevesLEDs) 450nm
Cree XPE red P3 bin (Cutter or LEDGroupbuy) If there is a red XPE2 P4 bin that would be awesome 630nm
Cree XTE 3000K R3 bin (Cutter)
Other posts by serious growers show that thoughts on the 600-700nm area are all over the board. Clearly there's some awesomeness happening, and it ain't happening enough with straight whites, at least the Cree XM-L's. So it would seem that the Halogen lamp again looms as a contender for me. Yes, the 700+ red can stretch. Looking at the previous images of my buddy's grow, he probably could have used a tad more stretch, anyhow.
The red is so comprehensive with a lamp, and there's just not a broad 600-700 LED LED solution that doesn't leave out a potentially good wavelength. So that's what I'm noodling over while eating...