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Wavelength: 450 nm (blue) Power: 500 mW Voltage: 12 V (DC) Working current: 2,100 mA Warning: - A Laser is capable of damaging your eyesight, skin and other people. - Please read and follow this guidebook carefully before use the laser kit. - The eye protection is need when you work with the laser kit. - The magnets on the laser head is very strong but brittle. - Laser engraving/cutting can cause smoke, depending on the workpiece, it is necessary to place your machine at a well-ventilated environment.