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why do you need laser protective glasses (necessity
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Visible light transmittance: 30%
HUNST Crystal 3D Engraving Machine, UV Laser Marking Machine is Suitable for Engraving Plastic, Metal, Glass, Wood, Leather, Etc Smoke Purifier the human eye does not1. Adopts high quality UV lasers, long lifespan, no consumables, and zero maintenance costs. 2. Small size, light weight (only 28 kg), easy to carry, and suitable for any work scene. 3. Built in high speed power meter, fast marking speed, high efficiency, up to 8000 mm s. 4. Industrial grade field lens focusing design, more refined effect, repeatability of 0. 001 mm. 5. Integrated air cooled structure, no need to add water or drag water pipes. 6.