The new "old style lights" are complete junk! Remember the pics Mars posted of lights to beware of? THAT'S what's being passed of on you!
-
We are officially moved over to Discourse.
Autoflower Discourse"
You will have to create a new login for the new site!
This current Xenforo-based forum will be preserved as a read-only archive going forward with efforts to better categorize and tag original and canonical content.
The URL autoflower.org will soon point to the new Discourse site; so we'll be back to business in a few days!
Send Son of Hobbes a private message if you have any questions!
Lighting Need some Help! 300 Watt old Modell (60x5 Watt Chip)
- Thread starter Cringer
- Start date
"
These dont' look good to me. First telltale was the concentration of wattage in such a short space--they're not putting out the right spectrum IMO, then look at the purple/blue-purple color of the light, it is nothing like the blended perfection of natural light, which is mostly "natural/clear/white" looking for lack of better description."
First, this was not designed for the home user, its a commercial unit and its half the price of some! It also ranked high in the study lined at the end.
Well in a study of growlights, it was one of the top ranked LEDs so you might want to re-think your spectrum statements. And FYI, many companies posted graphs, etc on what proper spectrum is, are using the wrong data!
A quote from SAG's LED Guide:
"LED grow light manufacturers/resellers tend to use the incorrect chlorophyll dissolved in a solvent charts or algae charts to back their claims that specific wavelengths are needed for photosynthesis. The correct chart is found here in chart C (pdf file from LiCor- the scientific standard in plant light meters and photosynthesis measurement test gear)."
Here's a chart from this study:
Economic Analysis of Greenhouse Lighting: Light Emitting Diodes vs. High Intensity Discharge Fixtures
links to sources
SAG's LED Guide:
http://www.reddit.com/r/HandsOnComplexity/comments/17nxhd/sags_plant_lighting_guide_linked_together/
PLOS ONE Study:
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0099010
These dont' look good to me. First telltale was the concentration of wattage in such a short space--they're not putting out the right spectrum IMO, then look at the purple/blue-purple color of the light, it is nothing like the blended perfection of natural light, which is mostly "natural/clear/white" looking for lack of better description."
First, this was not designed for the home user, its a commercial unit and its half the price of some! It also ranked high in the study lined at the end.
Well in a study of growlights, it was one of the top ranked LEDs so you might want to re-think your spectrum statements. And FYI, many companies posted graphs, etc on what proper spectrum is, are using the wrong data!
A quote from SAG's LED Guide:
"LED grow light manufacturers/resellers tend to use the incorrect chlorophyll dissolved in a solvent charts or algae charts to back their claims that specific wavelengths are needed for photosynthesis. The correct chart is found here in chart C (pdf file from LiCor- the scientific standard in plant light meters and photosynthesis measurement test gear)."
Here's a chart from this study:
Economic Analysis of Greenhouse Lighting: Light Emitting Diodes vs. High Intensity Discharge Fixtures
links to sources
SAG's LED Guide:
http://www.reddit.com/r/HandsOnComplexity/comments/17nxhd/sags_plant_lighting_guide_linked_together/
PLOS ONE Study:
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0099010
Similar threads
