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10pcs Circle Diffraction Gratings Coated Glass Lens for Red Green 650nm 532nm Laser LD Lighting Effect

This laser is normally used for laser stage lighting, laser locating.

Suitable wavelength: 500-700mw red and green laser

size: 5*5*1mm

mater: Glass

package: 10pcs

Note:

there is a dot on the center of the DG as the pic shows.