blogs.glowscotland.org.uk...Wavelength/nm 95501 105905 633 1-33 1-00 Colour Red Green Blue Colour...
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blogs.glowscotland.org.uk...Wavelength/nm 95501 105905 633 1-33 1-00 Colour Red Green Blue Colour Infrared Red Element Hydrogen Sodium Wavelength/nm 656 ... The highest frequency of