And high qualityHave you wondered how we know the composition and stars in the universe? It is a spectrometer, a piece of equipment that can analyze the spectrum of light from any. You have read it in textbooks, now you can have it in your hand and observe the spectrum of solar emission yourself! The spectroscope is made of optical glass. A composite prism and a convergent lens are installed in a vertical tube. Hold the spectroscope tube, the slit facing the light, parallel beams are generated from the slit and the converging lens. When parallel beams pass through a prism, the dispersion spectrum can be directly observed. If there is fluorescent light, you can see mercury spectra against the continuous spectrum (three straight lines). When you use it to observe sunlight, use the light reflected from the sun from the mirror (not facing the sun directly). This product can be used to analyze the light spectrum. It is a simple and cost-effective high-resolution product for hobbyists, amateur scientists, student laboratories, and scientific projects. Specifications:Shell Color: Blue Material: Plastic Size: 10x2.4x2cm/3.94x0.94x0.79inch: 1PcPackage Included1*Spectroscope Only the above package content, other products are not included. Note: The light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.