Designed for NEJE master 2 mini machine, very light weight, stable high-speed engraving
With adapter(laser pwm tester / laser switch board ) board, support 3d printer, cnc laser machine, other brand laser cnc machine, arduino project.
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.