NEJE 20W 450nm laser module head kits for DIY With TTL / PWM Modulation for laser cutting machine, laser engraving machine


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Overview and Specifications:

Product Attribute
Model Number : NEJE 20W Laser Module Kits


Heatsink Material: Aircraft Aluminum + Brass Shell
Luminous Color: Blue
Section Size: 30mm x 30mm
Cooling Mode: 40mm copper core + Heat Sink Groove+ Thermal silicone grease + 15000 rpm cooling fan
Dimension: 80 * 30 * 30mm
Adapter Plug: US Plug
Adapter Input Voltage: AC 100-240V UL certification high quality
Adapter Output Voltage: DC 12V 2A
Can Engrave: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum
Can Not Engrave: Metal/Glass/Stone/Ceramics/PCB/Stainless Steel/Reflective Material/ Transparent Material
Technical Parameters:
Module Input:          18-20W
Laser Output Power: 5.5W (5500mW)
Wavelength: 445-450nm
Beam Shape: Dot (Focusable)
Working Voltage: DC 12V
TTL&PWM Modulation: YES, Compatible with Both TTL & PWM Modulation
Input Voltage: DC12V
PWM/TTL Input:       DC3.3V-12V
Input Interface: PH2.0-4Pin (+,-, PWM/TTL, Temperature), 3Pin (+,-, PWM/TTL) , 2Pin+2Pin (+,-) + (PWM/TTL,-)
NOTE:                       Temperature interface can be disconnected,NEJE provides text instructions for temperature acquisition on wiki.
Drive Mode: External ACC
Safe temperature range:   <70 ℃
Module weight:        202g ( The lighter the weight, the smaller the move inertia, the better the performance )
Life Time:                20,000 hours

PWM/Temperature tester board Specification

Power input: DC 12V
Output: PH2.0 4pin (12v,GND,PWM/TTL,Temperature)
mode: 3 modes (off, manual pwm, pwm / ttl in)
temperature display: YES
pwm display: yes
Manual PWM control: YES

Module Test

Material: Plywood, thickness 3mm
Speed 330, cutting 3 times, each cutting 1.0mm
Speed 200, cut 2 times, each cut 1.5mm
Speed 100, cut once, cut 3mm each time

Features(Unique technology)

1. Can be used for laser cutting machine, laser engraving machine, CNC, DIY laser.
2. Original laser diodes, High-quality LD capping technology, Ensure service life!
3. Built-in driver board, 40mm threaded copper core with thermal grease compound, Temperature sensor,NEJE factory 48 hour 100% power aging test, Ensure long time working!
4. New lens, Clear focus, Not stray light, Adjustable focal length.
5. Can carving / Cutting MDF, balsa, paper, wood, fabric, plastic, leather, plywood, foam paper, anodized aluminum, etc.(Not suitable for iron or other metal)

Note(Please pay attention)

1. Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin!
2. Do not engrave mirror objects,Pay attention to fire,Pay attention to pets when working!
3. Smoke will be generated when burned, please pay attention to smoke exhaust indoors.
4. The warranty period of laser module is one year. If you have any quality problem(Except individual situation like using the laser module more than 30 minutes per time and casue the damage ), please feel free to ask our customer service for a help.
5. If your laser module has any problem, please DO NOT dismantle it without our permission. It will destroy the laser module.
6.  If you have any quality problem about the machine, please feel free to contact us. Many operative problem can be solved according to your video and problem description. Thank you in advance.
7. This laser module is compatible with our NEJE machine .

Package Included

1 x 20W Laser Engraving Module
1 x Laser Module Sliding fixture
1 x 4 Pin Cable(1000mm)
1 x NEJE PWM/Temperature tester board
1 x 110V-240V 12V2A UL certified power supply
1 x  Euro adapter
1 x 2.5mm L-shaped wrench
1 x 5mm L-shaped wrench
1 x goggle