Compatible with master 2/2s 3, NEJE 2S/3 plus, NEJE 3 Pro, NEJE 2S/3 Max machines

With adapter([[https://wiki.nejetool.com/doku.php?id=laser_tester_v1|laser pwm tester ]]/ [[https://wiki.nejetool.com/doku.php?id=laser_switch_board_v1|laser switch board ]]) board, support 3d printer, cnc laser machine, other brand laser cnc machine, arduino project.


===== Attention=====

{{https://nejetool.oss-us-west-1.aliyuncs.com/wiki/master_2/attention.jpg}}

This product is designed with anti-static protection！

Please wear protective glasses before operation！

Please do not touch the laser outlet with your hands. It may burn your hands！

Children under 14 years of age are prohibited from using this product！

Children over 14 years of age need adult supervision when using this product！


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===== Interface =====

{{https://nejetool.oss-us-west-1.aliyuncs.com/wiki/NEJE_3_Max/A40640_interface.png?300x300}}

12V: Power positive .

GND: Power ground or power negative.

TTL/PWM: TTL = PWM, input 3.3V~12V to turn on laser module, conect to GND to turn off laser module.

Temperature: do not connect, please ignore.

Connect 12V and GND pin to 12V power, ensure the power adapter is sufficient, 5A is recommended.

Connect TTL/PWM pin to your control board PWM output pin.

===== Installation =====

{{https://nejetool.oss-us-west-1.aliyuncs.com/wiki/module_20w/size.png?400x400}}
{{https://nejetool.oss-us-west-1.aliyuncs.com/wiki/module_20w/Installation2.png?400x400}}




===== Maintenance =====

Please make sure the lens surface is clean, avoid smoke from getting on the lens when using it, keep it in a box when not in use, avoid dust, keep it dry.

If the inside of the lens is stained with dust or smoke, it may cause the lens to break, because the high-power laser will cause the lens surface to crack.