light supplementation

do you use any other light source to supplement your otherwise all-led-grow? and is it worth it?

  • yes i do, and the wider the spectrum the better.

    Votes: 1 25.0%

  • nope, it doesn't matter, the ends don't justify the expenses/time wasted.

    Votes: 3 75.0%

  • yes i did, but have seen no net benefit from enhancing the spectrum.

    Votes: 0 0.0%
  • Total voters
    4
  • Poll closed .
nonamedman420

nonamedman420

Well-Known Member
for all you LED growers, do you find that your lights need and form of additional spectrum supplementation? i've been reading into intumescence and oedema on plants grown under artificial lights, mainly led, and the effects of spectrum supplementation to minimize or eliminate it.

https://phys.org/news/2016-08-treatments-inhibit-intumescence-injury-tomato.html

it says it is caused from lighting deficient in uv and ir. what are your thought on reptile bulbs for uv, and incandescent light for ir? minimal watt requirements for incandescent, but not sure on the uv.

please share your thoughts, as i believe we all can benefit from the information. anecdotally, i am using a 15w incandescent light bulb in a 2x4' closet that has ~240 watts of cobs and led strips. i can't describe the night and day difference of my buddies plants, which i can only attribute to higher L.S.T. (leaf surface temperature) than the plants growing under led light only, as led grown plants require a higher ambient temp in the growroom to achieve optimal l.s.t. vs plants grown under a light source high in infrared light (heat).

any thoughts are welcomed.
 
hybridway2

hybridway2

Amare Shill
nonamedman420 said:
for all you LED growers, do you find that your lights need and form of additional spectrum supplementation? i've been reading into intumescence and oedema on plants grown under artificial lights, mainly led, and the effects of spectrum supplementation to minimize or eliminate it.

https://phys.org/news/2016-08-treatments-inhibit-intumescence-injury-tomato.html

it says it is caused from lighting deficient in uv and ir. what are your thought on reptile bulbs for uv, and incandescent light for ir? minimal watt requirements for incandescent, but not sure on the uv.

please share your thoughts, as i believe we all can benefit from the information. anecdotally, i am using a 15w incandescent light bulb in a 2x4' closet that has ~240 watts of cobs and led strips. i can't describe the night and day difference of my buddies plants, which i can only attribute to higher L.S.T. (leaf surface temperature) than the plants growing under led light only, as led grown plants require a higher ambient temp in the growroom to achieve optimal l.s.t. vs plants grown under a light source high in infrared light (heat).

any thoughts are welcomed.
Click to expand...
Wholly SHiTe Mang! I think you may have just found some key info. That I've suspected all along but others think I'm crazy.
I use it all. All the highest tech led fixtures around with their plain or fancy spectrums. The ones closest to filling the 660-730 & 470's , with a high k, temp, have done the best for me via plant health in flower. Not to say i haven't seen my share of LedDefficiency under them, just less, as it explains in the article. Enough so i can control it.
Glad i have a Bar-8 UVL in the mail! : )
That will cover UVB,UVA, & everything in between with the Canna-Spec.
Shits gonna blow CMH spectrum outta the water.
Good share, thanks!
 
Last edited:
2

2com

Well-Known Member
hybridway2 said:
Wholly SHiTe Mang! I think you may have just found some key info. That I've suspected all along but others think I'm crazy.
I use it all. All the highest tech led fixtures around with their plain or fancy spectrums. The once closest to filling the 660-730 & 470's , with a high k, temp, have done the best for me via plant health in flower. Not to say i haven't seen my share of LedDefficiency under them, just less, as it explains in the article. Enough so i can control it.
Glad i have a Bar-8 UVL in the mail! : )
That will cover UVB,UVA, & everything in between with the Canna-Spec.
Shits gonna blow CMH spectrum outta the water.
Good share, thanks!
Click to expand...
When I "found" this thread the other day, and looked (briefly) into some of the terms, I had a feeling that some really good info could possibly be obtained from the topics/things discussed in some articles. Really, it was the whole lack of ir and uv being "tied to" some type of "condition" that was really interesting.

I've been needing to add heat to plants under led. But Ideally it'd be nice to improve the spectrum as well at the same time if possible. I considered cmh (for the heat mostly, and the good spectrum). What are these bar-8 uvl you mentioned? Do you think some ir leds would be the most efficient way to raise plant temps (not room temps)?

Thanks.

Edit: found, Amare light. Interesting.
 
nonamedman420

nonamedman420

Well-Known Member
Gonna necro my own thread, damn I smoke a lot and didn't remember posting this although I do remember my reading this. I like to use a few different lights myself and have had good success with tiny incandescent bulbs on a timer for 30 on in the morning and 30 before lights out. So something like 12 hrs dark, first 30 min of lights on using both led + incandescent, 11 hrs led, 30 min both led + incandescent. That's the schedule I landed on after adjusting for the stretch it induces. I been thinking out of the box lately and want to start a schedule that more resembles nature, low light intensity + IR for first hour, then shift from a "sunrise" spectrum to a "midday" spectrum to again a sunset spectrum. with IR. Many ideas but not sure on the practicality of doing so. I am open to suggestions and and am also in the market to upgrade my cobs on my homemade light and have been out of the loop for a few years so not sure where the community has gone in regards to spectrum since then.
 
Comparator

Comparator

Well-Known Member
nonamedman420 said:
Gonna necro my own thread, damn I smoke a lot and didn't remember posting this although I do remember my reading this. I like to use a few different lights myself and have had good success with tiny incandescent bulbs on a timer for 30 on in the morning and 30 before lights out. So something like 12 hrs dark, first 30 min of lights on using both led + incandescent, 11 hrs led, 30 min both led + incandescent. That's the schedule I landed on after adjusting for the stretch it induces. I been thinking out of the box lately and want to start a schedule that more resembles nature, low light intensity + IR for first hour, then shift from a "sunrise" spectrum to a "midday" spectrum to again a sunset spectrum. with IR. Many ideas but not sure on the practicality of doing so. I am open to suggestions and and am also in the market to upgrade my cobs on my homemade light and have been out of the loop for a few years so not sure where the community has gone in regards to spectrum since then.
Click to expand...
Great idea.
 
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