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Feature

2pcs Packs Clear Spiral Fireworks Diffraction Grating Sheet Film;
Diffraction Grating that has spiral effect under lighting;
0.25mm Thickness A4 Size Sheet 210*297mm(8*11 Inch Important!!)Comes with protective peel-off film on both sides.
Diffraction Gratings are used for direct viewing and analysis of spectra from different gas tubes and other light sources.
Usage For New Year Festivals,Carnivals,Light shows,Holidays and Christmas lights

Description

8"X11" A4 Diffraction Gratings sheets;
Used for direct viewing and analysis of spectra;
The quality of the spectrum is the brightest possible;
Recommended to use in conjunction with colored film gels;
Diffraction Gratings are used for direct viewing and analysis of spectra from different gas tubes and other light sources;
The quality of the spectrum produced from these gratings is the brightest possible with a minimal distracting visual noise;
These gratings are the principal component in a spectroscope and are used for experiments pertaining to the study of light and color.