Parameters of the product: Brand: SAM one technology Output power: 4000mw Working current: 1500 mA Optics: Focus lens Place: Dot Dimensions: 40mm * 70mm Of working life: 8000 hours Wavelength: 445-450nm Band output: visible light Supply voltage: 12 V 12 V Working temperature: ± 50 degrees Celsius Product material: Aluminum aviation The laser module is a semiconductor laser head, widely used in diy engraving machines, and supports cnc or Android motherboard control. The laser head driver board has pwm / TTL, so we can control the power and speed of the laser head with some parameters.  Instructions for use:  1. Use directly by connecting the power supply. (You can add a power controller)  2. Connect the engraving machine main board and control the laser module through the main board.
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