Great equipment for analyzing light spectrums from any light source You may receive copyrights, so you can grab it and observe the sun's luminous spectrum yourself! The protractor is made of optical glass. Composite prisms and converging lenses are mounted on vertical tubes Holding the light spectrum tube and pointing the slit to the light, the parallel beam is generated from the slit and converging lens This product can be used for a variety of optical spectrum analysis. This is a high resolution, simple and economical product for enthusiasts, amateur scientists, student labs, and science fair projects
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