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Date ascName Thumbnail Size User Description Versions
08:37, 26 December 2013Chlorofyll-Sun-spectrum.gif (file)34 KBMisho (Spectrum of sunlight reaching the Earth compared to chlorofyll (a and b) and other related to photosynthesis compounds. Source:
09:33, 26 December 2013Chlorophyll-led-spectrum-combined.png (file)120 KBMisho (LED spectrum of TO46 with exact positions of wavelengths, overimposed on peaks in wavelength, most desirable for plants. Author: Mihail Mateev)1
22:53, 25 December 2013Chlorophyll.jpg (file)16 KBMisho (Sunlight peaks in the blue spectrum at 475 nanometers (nm). This is a shorter wavelength than red light and is used by both plants and algae. As light passes through water the intensity decreases. The shorter wavelength blue light penetrates water bett...)1
08:30, 26 December 2013F21-08 Spectrum white P LED.jpg (file)60 KBMisho (Emission spectrum of a phophor-based white LED manufactured by Nichia Corporation (Anan, Tokushima, Japan). Image source:
08:51, 26 December 2013Image033.jpg (file)30 KBMisho (All fluorescent and MH bulbs have a discrete spectrum, whereas sunlight has a continuous spectrum. Discrete spectrum is a result of using a discharge in mercury (and other metal) vapors, with several peaks at different wavelengths, mostly in the ultrav...)1
08:12, 26 December 2013LED-human-spectrum-comparison.jpg (file)137 KBMisho (Typical Cool White LED Response, compared to human eye response. LEDs are available as both ‘warm white’ and ‘cool white’, however, as the ‘cool white’ LEDs produce a hue nearer to daylight, and are more efficient, they are normally prefer...)1
22:35, 25 December 2013LED-spectum.png (file)67 KBMisho (Typical LED Spectrum, taken from, Product Diagrams (
08:45, 26 December 2013PAR-spectrum.jpg (file)13 KBMisho (Photosynthetic Action Spectrum Source:
09:06, 26 December 2013Stealth-grow-LED-full-spectum-graph.jpg (file)56 KBMisho (PAR, MH and LED spectra compared. Source: 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...)1
09:11, 26 December 2013Stealth-grow-LED-spectum-graph.jpg (file)32 KBMisho (Great share of HID light is wasted, as it is not absorbed by the plants Source:
08:20, 26 December 2013Warm vs Cool White.jpg (file)14 KBMisho (
09:21, 26 December 2013White led plot.jpg (file)19 KBMisho (LED spectrum of TO46 with exact positions of wavelength Source:

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