Green pen is the wavelength of light emitted 500 550nm the wavelength sensitivity of the coefficient table as is the closest one wavelength. Green pen is the wavelength of light emitted 500 550nm the wavelength sensitivity of the coefficient table as is the closest one wavelength. Green laser pointer is now the world s most popular laser pointers because the green lasers than red lasers 6 times more than red laser beam significantly while the price is much cheaper than the blue and yellow.
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