LEDs, all blue for veg, all red for flower??
- Thread starter savanne
- Start date
eternal noob
Active Member
I got better results using all spectrum's for both. The blue in veg helps with stretching and the far red at the end of the daily cycle also helps.
Phillip J Fry
Active Member
i found the best thread about this matter and here it is
https://www.rollitup.org/indoor-growing/358190-led-without-leds-my-first.html
https://www.rollitup.org/indoor-growing/358190-led-without-leds-my-first.html
I just went to link mentioned above, and still in the dark:
Given this info: [FONT="]Plants grow by the process of photosynthesis. Chlorophyll is vital for photosynthesis, which allows plants to obtain energy from light. Plants only absorb certain light spectrums, mostly blue and red, while nearly all others are reflected or otherwise unused by the plant. Light spectrums are measured in nanometers or “nm”. Chlorophyll production is made up of two parts, A and B. Maximum chlorophyll A production occurs at 662nm (for red) and 430nm (for blue), while maximum chlorophyll B production occurs at 642nm (for red) and 453nm (for blue). These are the peak points at which chlorophyll production is maximized, even just a few nm above or below these points will significantly reduce production. [/FONT]
I am still unclear -- do plants need both red and blue in all stages of growth, with more blue needed for veg, and more red for flower. Or do they need only blue light for veg, and only red for flowering? I need to order more lights very soon, and given the LEDs are so expensive and the seller's hype so overblown, sure would like to find out more about the color thing, not to mention the 1w vs 2 and 3w systems. Now they are hyping 6w systems, oh vey! anybody got the real skinny on these issues? thanks
Given this info: [FONT="]Plants grow by the process of photosynthesis. Chlorophyll is vital for photosynthesis, which allows plants to obtain energy from light. Plants only absorb certain light spectrums, mostly blue and red, while nearly all others are reflected or otherwise unused by the plant. Light spectrums are measured in nanometers or “nm”. Chlorophyll production is made up of two parts, A and B. Maximum chlorophyll A production occurs at 662nm (for red) and 430nm (for blue), while maximum chlorophyll B production occurs at 642nm (for red) and 453nm (for blue). These are the peak points at which chlorophyll production is maximized, even just a few nm above or below these points will significantly reduce production. [/FONT]
I am still unclear -- do plants need both red and blue in all stages of growth, with more blue needed for veg, and more red for flower. Or do they need only blue light for veg, and only red for flowering? I need to order more lights very soon, and given the LEDs are so expensive and the seller's hype so overblown, sure would like to find out more about the color thing, not to mention the 1w vs 2 and 3w systems. Now they are hyping 6w systems, oh vey! anybody got the real skinny on these issues? thanks