Under canopy LED’s

[Chefdave]

those 6500's should keep the stretch minimal I would think especially compared to 4 or 5k

6500 k is ok, as long as you have a lot of 660nm mixed in, 6500knby itself is veg lighting not flower

 

[rkymtnman]

6500 k is ok, as long as you have a lot of 660nm mixed in, 6500knby itself is veg lighting not flower

trichtect said he was using it as under canopy to limit stretch.

 

[Chefdave]

those 6500's should keep the stretch minimal I would think especially compared to 4 or 5k

6500 k is ok, as long as you have a lot of 660nm mixed in, 6500knby itself is veg lighting not flower

trichtect said he was using it as under canopy to limit stretch.

I'm mostly using the under-canopy lights as a strategy to limit stretch.

This is all for personal so looks like I'll just get a better overhead for my big room. Almost everything gets pressed so I go through a lot of plants for the 3 of us here that partake.

A much more effective way to limit stretch is in the first 3 weeks of flower to utilize significant drybacks and for the first week of flower a 0 -52- 35 fertilizer such as moab, kool bloom dry, open sesame, etc. this will induce many more flower sites, while limiting stretch in addition to the drybacks 30 to 40 percent overnight. Sorry to say but those 6500k at that wattage, being undercanopy aren't doing much for ya stretch wise, but will help with lowers somewhat, you need more wattage, you can run overhead lights at 60 percent overhead for 1st 3weeks of flower, with your 6500s ,even though with the strains your running which sound like landrace , never really stop growing.

 

[Trichitect]

6500 k is ok, as long as you have a lot of 660nm mixed in, 6500knby itself is veg lighting not flower

My top light is a Mars Hydro fce-8000. I forgot to mention that I just started using they're "Adlite" series as well, got the UV, IR, and the 660 deep red going, so plenty of red in there. I figured the 6500k would add some blue to that, maybe balance things out a bit. I've used these same light for vegging seedlings and also as supplemental top lights during flower. Some of those grows produced absolutely amazing flower, better than without I'd argue. I've heard people swear by metal halide for ultimate flower quality, never tried MH myself, but I'm convinced that some additional blue during flower can be very beneficial. For this run I'm even considering hitting them with the Blue Adlite (440nm) during that last couple weeks of flower.
I guess I just love experimenting.

 

[Chefdave]

My top light is a Mars Hydro fce-8000. I forgot to mention that I just started using they're "Adlite" series as well, got the UV, IR, and the 660 deep red going, so plenty of red in there. I figured the 6500k would add some blue to that, maybe balance things out a bit. I've used these same light for vegging seedlings and also as supplemental top lights during flower. Some of those grows produced absolutely amazing flower, better than without I'd argue. I've heard people swear by metal halide for ultimate flower quality, never tried MH myself, but I'm convinced that some additional blue during flower can be very beneficial. For this run I'm even considering hitting them with the Blue Adlite (440nm) during that last couple weeks of flower.
I guess I just love experimenting.

No I agree with ya, I use cmh in veg except during warm months, and my best flower I ever produced was also using cmh, they are the best cri out there, but not efficient . What I was saying it's not going to help much with controlling stretch. I have 1 of the same light you have mars fce 8000 with supplemental uva and far red. It is a good light! I have a bad taste for it because it burned the connection from the driver to the light through arcing, which is common for this light, but was a free easy fix, they sent me a new connector and took me 15 min to fix. The 6500 definitely will help with some quality. That's all I use in my veg tables except for the large table. All 50 watt 6500k 4ft led tubes, they are amazing for 12 inch and under plants in veg. The two LEDs on the big table are weicrea matrix 400 watts each my veg room is 6 x 9, they suck compared to my cmh

 

[Trichitect]

Yep, those connectors are junk. When you twist them the wires end up crossing, wtf!? All you need to do is cut the cord and use wire nuts, works perfect! I would use those connectors again even if I got them for free, lol.
Never tried CMH either, but heard similar things to MH, like the extra blue increases flower quality.

 

[Chefdave]

Yep, those connectors are junk. When you twist them the wires end up crossing, wtf!? All you need to do is cut the cord and use wire nuts, works perfect! I would use those connectors again even if I got them for free, lol.
Never tried CMH either, but heard similar things to MH, like the extra blue increases flower quality.

Great idea, I have waterproof wire nuts, think I will give that a go when that light goes back into operation this fall!