Difference between revisions of "File:Stealth-grow-LED-full-spectum-graph.jpg"

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(PAR, MH and LED spectra compared. Source: http://www.stealthgrow.com/facts.htm Light Spectrum and Absorption 200-280nm UVC ultraviolet range, which is highly toxic and extremely harmful to plants. 280-315nm Includes harmful UVB ultraviolet light, wh...)
 
 
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Light Spectrum and Absorption
 
Light Spectrum and Absorption
 +
  
 
200-280nm UVC ultraviolet range, which is highly toxic and extremely harmful to plants.
 
200-280nm UVC ultraviolet range, which is highly toxic and extremely harmful to plants.
 +
 
280-315nm Includes harmful UVB ultraviolet light, which causes plant colors to fade.
 
280-315nm Includes harmful UVB ultraviolet light, which causes plant colors to fade.
 +
 
315-380nm Range of UVA ultraviolet light that is neither harmful nor beneficial to plant growth.
 
315-380nm Range of UVA ultraviolet light that is neither harmful nor beneficial to plant growth.
 +
 
380-400nm Start of visible light spectrum.  Process of chlorophyll absorption begins.  UV protected plastics ideally block out any light below this range.
 
380-400nm Start of visible light spectrum.  Process of chlorophyll absorption begins.  UV protected plastics ideally block out any light below this range.
 +
 
400-520nm This range includes violet, blue, and green bands.  Peak absorption by chlorophyll occurs, and a strong influence on photosynthesis (promotes vegetative growth.)
 
400-520nm This range includes violet, blue, and green bands.  Peak absorption by chlorophyll occurs, and a strong influence on photosynthesis (promotes vegetative growth.)
 +
 
520-610nm This range includes the green, yellow, and orange bands and has less absorption by pigments.
 
520-610nm This range includes the green, yellow, and orange bands and has less absorption by pigments.
 +
 
610-720nm This is the red band.  Large amounts of absorption by chlorophyll occur, and most significant influence on photosynthesis (promotes budding and flowering.)
 
610-720nm This is the red band.  Large amounts of absorption by chlorophyll occur, and most significant influence on photosynthesis (promotes budding and flowering.)
 +
 
720-1000nm There is little absorption by chlorophyll here.  Flowering and germination is influenced.  At the high end of the band is infrared, which is heat.
 
720-1000nm There is little absorption by chlorophyll here.  Flowering and germination is influenced.  At the high end of the band is infrared, which is heat.
 +
 
1000+ Totally infrared range.  All energy absorbed at this point is converted to heat.
 
1000+ Totally infrared range.  All energy absorbed at this point is converted to heat.

Latest revision as of 10:06, 26 December 2013

PAR, MH and LED spectra compared.

Source: http://www.stealthgrow.com/facts.htm

Light Spectrum and Absorption


200-280nm UVC ultraviolet range, which is highly toxic and extremely harmful to plants.

280-315nm Includes harmful UVB ultraviolet light, which causes plant colors to fade.

315-380nm Range of UVA ultraviolet light that is neither harmful nor beneficial to plant growth.

380-400nm Start of visible light spectrum. Process of chlorophyll absorption begins. UV protected plastics ideally block out any light below this range.

400-520nm This range includes violet, blue, and green bands. Peak absorption by chlorophyll occurs, and a strong influence on photosynthesis (promotes vegetative growth.)

520-610nm This range includes the green, yellow, and orange bands and has less absorption by pigments.

610-720nm This is the red band. Large amounts of absorption by chlorophyll occur, and most significant influence on photosynthesis (promotes budding and flowering.)

720-1000nm There is little absorption by chlorophyll here. Flowering and germination is influenced. At the high end of the band is infrared, which is heat.

1000+ Totally infrared range. All energy absorbed at this point is converted to heat.

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current10:06, 26 December 2013Thumbnail for version as of 10:06, 26 December 2013634 × 495 (56 KB)Misho (Talk | contribs)PAR, MH and LED spectra compared. Source: http://www.stealthgrow.com/facts.htm Light Spectrum and Absorption 200-280nm UVC ultraviolet range, which is highly toxic and extremely harmful to plants. 280-315nm Includes harmful UVB ultraviolet light, wh...

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