1x 20W or 40W Laser Engraver Module. 20w/40w Laser module. 1x 3-pin connection cable (12V PWM GND). 3-pin(12V,GND,PWM). Specification (20W). Output Power: 40W. Specification (40W). 【 Excellent Compatibility 】Just need to simply connect to the CNC machine with screws and wire to the motherboard then the installation is finished.
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