Green pen is the wavelength of light emitted 500 550nm the wavelength sensitivity of the coefficient table as is the closest one wavelength.
Powerful red laser pointer pen beam light 5mw.
We suggest the continuous illumining use should be less than 1 minute in case of the excessive heat influence the service life.
5mw red laser pointer.
This 5mw 650nm ultra powerful beam light red laser pointer is small and exquisite portable and with richer applications.
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.
Visible red light beam in dark area.
1 x laser pointer pen batteries not included.
Green pen is the wavelength of light emitted 500 550nm the wavelength sensitivity of the coefficient table as is the closest one wavelength.