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Powerful 3000mw 532nm Laser Pointer Can …ignite matche

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Lasers and ordinary light by their very nature, are electromagnetic waves, their speed of propagation is 300,000 kilometers per second, but the laser still has its own unique physical properties:
1. monochromatic excellent. Wavelength of the laser is very consistent, a beam of light in a wavelength difference it is only one thousandth, is an excellent monochromatic light.
2. high brightness.
3. The directivity is excellent. Very concentrated beam, the beam divergence angle of its thousands of times smaller than the searchlight.

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