LED Grow Light - Page 3

coronelcarina07 · 09-27-2013, 01:53 AM

You can check out LED Grow Lights | Apollo LED Grow Panels | UFO Grow Lights

Nathan1023 · 02-16-2014, 02:49 PM

Generally, I've heard that blue (>6000K or metal halide) light is best for vegetative growth, and red (<3000K or high pressure sodium) light is best for flowering/fruiting. LED's usually have blue and/or red lights. Reading Amazon reviews, it seems like you get what you pay for. Some are less that $30, but the reviews say that they're completely worthless, while some are over $1000, but the reviews are phenomenal. I've talked a lot about this with the owner of my local hydroponics store (Home). He said he bought a Kessil, but after testing it under a light meter, decided not to sell it. He said that some brands he tested put out lots of Photosynthetically Active Radiation (PAR) at one specific distance, but much less at other distances. Others were more stable across different distances. In practical terms, this means that the top of your plant might do really well, but the rest of it won't, unless you get an LED whose PAR remains stable across distances. PAR is really what plants use. Lumens are just what humans see. More lumens usually means more PAR, but not always.

Moffaka · 03-13-2018, 10:49 AM

Quote:

Originally Posted by sunfish

Can you grow marijuana with LED grow lights? | Grow Weed Easy

And the plants look kewl under the colored lights

What color spectrum should prevail?

Nathan1023 · 04-14-2018, 06:41 PM

It depends on what stage of growth your plants are in. More blue for veg; more red for flowering.

subsonicdrone · 04-15-2018, 06:17 AM

just thought i would put this here as i watched it only a couple days ago

finally heard a good review although i have not seen a good led set up in person i have heard of real results... very specific units only.. dont know the brand/model sorry
until i see more proof my opinion of them is the same as some of the first replies

https://www.youtube.com/watch?v=mOQ2SmaDLOY

aruzinsky · 04-15-2018, 11:17 AM

https://www.youtube.com/watch?v=ifGdAcDryXk

aruzinsky · 04-15-2018, 12:02 PM

The main health concern about LED household lighting is that too much blue interferes with people's circadian rhythm. Some manufacturers have addressed this by replacing some of the blue and red wavelengths with violet wavelengths near 400nm. I consider this a sales gimmick like "made with sea salt" and "gluten free." Plants prefer red (660nm) and blue (450nm) to violet (400nm) therefore the "healthy" bulbs are not so good for plants.

http://www.ledsmagazine.com/articles...-lighting.html

speakeasy · 04-17-2018, 05:24 AM

Quote:

Originally Posted by aruzinsky

The main health concern about LED household lighting is that too much blue interferes with people's circadian rhythm. Some manufacturers have addressed this by replacing some of the blue and red wavelengths with violet wavelengths near 400nm. I consider this a sales gimmick like "made with sea salt" and "gluten free." Plants prefer red (660nm) and blue (450nm) to violet (400nm) therefore the "healthy" bulbs are not so good for plants.

http://www.ledsmagazine.com/articles...-lighting.html

I use software on my computer to gradually change the color temperature on my screen for this reason. https://justgetflux.com/

I grow in the vegetative phase with 4000K lights which are pretty neutral (I also have some 2700K lights). But I make sure they're off at 7pm. And I agree with you, the problem with violet at 400nm is that's where chlorophyll absorption rates start to drop off.

aruzinsky · 04-17-2018, 10:26 AM

Quote:

Originally Posted by speakeasy

I use software on my computer to gradually change the color temperature on my screen for this reason. https://justgetflux.com/

I grow in the vegetative phase with 4000K lights which are pretty neutral (I also have some 2700K lights). But I make sure they're off at 7pm. And I agree with you, the problem with violet at 400nm is that's where chlorophyll absorption rates start to drop off.

The backlighting in LCD monitors and TVs (and, maybe, smartphones?) is currently the same as the light emitted from typical household lighting bulbs, either fluorescent or LED. Possibly, the manufacturers of those monitors will switch to the violet rich LED lighting and then you can keep the color temperature on your screen high.

I aesthetically prefer 8000K household lighting and use Sylvania Sky White fluorescent, when I can. Blue is my favorite color.

https://www.youtube.com/watch?v=gKrlRCH_M00

DenaKessler · 06-21-2018, 03:45 AM

Quote:

Originally Posted by Moffaka

What color spectrum should prevail for grow?

Red for flowering.

cincinnana · 06-24-2018, 05:21 PM

I had stopped by the hydro store.
I picked up some pearlite and some other stuff.

A nice variable 6x6 setup retail was 1600.00 out the door.
I was impressed with the knowledge of the store personnel.

ChristopherAndrews · 05-21-2019, 04:46 AM

Light Emitting Diode (LED) grow lights are a sort of vitality productive lights that is a possibility for indoor cultivators. In contrast to different kinds of develop lights, LEDs don't consume a fiber, yet rather go light through semiconductors to make their range. Driven grow lights can be utilized as the sole methods for lighting in a developing activity, as an enhancement to common light, or matched with different kinds of develop lights.

In contrast to different sorts of develop lights, light transmitted by LEDs can be centered, so none is scattered or lost between the knob and the shelter of the plants. LEDs have long administration lives, with knobs enduring from 50,000 to 100,000 hours of constant use.

subsonicdrone · 05-22-2019, 10:24 AM

This led thread really attracts spam

09-27-2013, 01:53 AM	#41 (permalink)
coronelcarina07 Join Date: Jun 2013 Posts: 6 BananaBucks : 554 Feedback: 0 / 0% Said "Thanks" 0 Times Was Thanked 1 Time in 1 Post Said "Welcome to Bananas" 0 Times	Re: LED Grow Light You can check out LED Grow Lights \| Apollo LED Grow Panels \| UFO Grow Lights

02-16-2014, 02:49 PM	#42 (permalink)
Nathan1023 Location: Richmond, VA Zone: 7 Join Date: Feb 2014 Posts: 43 BananaBucks : 12,309 Feedback: 0 / 0% Said "Thanks" 16 Times Was Thanked 31 Times in 13 Posts Said "Welcome to Bananas" 0 Times	Re: LED Grow Light Generally, I've heard that blue (>6000K or metal halide) light is best for vegetative growth, and red (<3000K or high pressure sodium) light is best for flowering/fruiting. LED's usually have blue and/or red lights. Reading Amazon reviews, it seems like you get what you pay for. Some are less that $30, but the reviews say that they're completely worthless, while some are over $1000, but the reviews are phenomenal. I've talked a lot about this with the owner of my local hydroponics store (Home). He said he bought a Kessil, but after testing it under a light meter, decided not to sell it. He said that some brands he tested put out lots of Photosynthetically Active Radiation (PAR) at one specific distance, but much less at other distances. Others were more stable across different distances. In practical terms, this means that the top of your plant might do really well, but the rest of it won't, unless you get an LED whose PAR remains stable across distances. PAR is really what plants use. Lumens are just what humans see. More lumens usually means more PAR, but not always.

04-14-2018, 06:41 PM	#44 (permalink)
Nathan1023 Location: Richmond, VA Zone: 7 Join Date: Feb 2014 Posts: 43 BananaBucks : 12,309 Feedback: 0 / 0% Said "Thanks" 16 Times Was Thanked 31 Times in 13 Posts Said "Welcome to Bananas" 0 Times	Re: LED Grow Light It depends on what stage of growth your plants are in. More blue for veg; more red for flowering.

04-15-2018, 06:17 AM	#45 (permalink)
subsonicdrone Join Date: Nov 2010 Posts: 1,385 BananaBucks : 26,965 Feedback: 3 / 100% Said "Thanks" 4,747 Times Was Thanked 1,905 Times in 661 Posts Said "Welcome to Bananas" 0 Times	Re: LED Grow Light just thought i would put this here as i watched it only a couple days ago finally heard a good review although i have not seen a good led set up in person i have heard of real results... very specific units only.. dont know the brand/model sorry until i see more proof my opinion of them is the same as some of the first replies https://www.youtube.com/watch?v=mOQ2SmaDLOY

04-15-2018, 11:17 AM	#46 (permalink)
aruzinsky Location: IL Find me on the map! Zone: 6a (10 miles east of 5b) Name: Steve Join Date: Feb 2017 Posts: 499 BananaBucks : 173,828 Feedback: 0 / 0% Said "Thanks" 15 Times Was Thanked 788 Times in 317 Posts Said "Welcome to Bananas" 5 Times	Re: LED Grow Light https://www.youtube.com/watch?v=ifGdAcDryXk

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04-15-2018, 12:02 PM	#47 (permalink)
aruzinsky Location: IL Find me on the map! Zone: 6a (10 miles east of 5b) Name: Steve Join Date: Feb 2017 Posts: 499 BananaBucks : 173,828 Feedback: 0 / 0% Said "Thanks" 15 Times Was Thanked 788 Times in 317 Posts Said "Welcome to Bananas" 5 Times	Re: LED Grow Light The main health concern about LED household lighting is that too much blue interferes with people's circadian rhythm. Some manufacturers have addressed this by replacing some of the blue and red wavelengths with violet wavelengths near 400nm. I consider this a sales gimmick like "made with sea salt" and "gluten free." Plants prefer red (660nm) and blue (450nm) to violet (400nm) therefore the "healthy" bulbs are not so good for plants. http://www.ledsmagazine.com/articles...-lighting.html

06-24-2018, 05:21 PM	#51 (permalink)
cincinnana container grower Location: Southwest Ohio U.S.A.🇺🇸 Find me on the map! Zone: HZ 6/5 Microclimate - Elevation 750 feet- 228.60 meters Join Date: May 2012 Posts: 8,851 BananaBucks : 1,749 Feedback: 7 / 100% Said "Thanks" 3,897 Times Was Thanked 11,750 Times in 4,900 Posts Said "Welcome to Bananas" 1,948 Times	Re: LED Grow Light I had stopped by the hydro store. I picked up some pearlite and some other stuff. A nice variable 6x6 setup retail was 1600.00 out the door. I was impressed with the knowledge of the store personnel. __________________ Cincinnana/Hostafarians Photo Gallery 🌴

05-21-2019, 04:46 AM	#52 (permalink)
ChristopherAndrews Join Date: May 2019 Posts: 1 BananaBucks : 153 Feedback: 0 / 0% Said "Thanks" 0 Times Was Thanked 0 Times in 0 Posts Said "Welcome to Bananas" 0 Times	Re: LED Grow Light Light Emitting Diode (LED) grow lights are a sort of vitality productive lights that is a possibility for indoor cultivators. In contrast to different kinds of develop lights, LEDs don't consume a fiber, yet rather go light through semiconductors to make their range. Driven grow lights can be utilized as the sole methods for lighting in a developing activity, as an enhancement to common light, or matched with different kinds of develop lights. In contrast to different sorts of develop lights, light transmitted by LEDs can be centered, so none is scattered or lost between the knob and the shelter of the plants. LEDs have long administration lives, with knobs enduring from 50,000 to 100,000 hours of constant use.

05-22-2019, 10:24 AM	#53 (permalink)
subsonicdrone Join Date: Nov 2010 Posts: 1,385 BananaBucks : 26,965 Feedback: 3 / 100% Said "Thanks" 4,747 Times Was Thanked 1,905 Times in 661 Posts Said "Welcome to Bananas" 0 Times	Re: LED Grow Light This led thread really attracts spam

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