20W Laser Cutting / Engraving Module Blue Light With TTL / PWM Modulation for CNC


DELIVERY U.S. Warehouse 3-5 DAYS

DELIVERY CHINA Warehouse 10-20 Days 

SKU: 33059275128 Category:


Laser Engraving Module NEJE 







Model:                 NEJE Module 20W
Heatsink Material: Aircraft Aluminum + Brass Shell
Luminous Color: Blue
Laser diode: NUBM0A with NEJE Cap technology
LD Current:  3.2A
Section Size: 30mm x 30mm
Cooling Mode: 40mm copper core + Heat Sink Groove+ Thermal silicone grease + 15000 rpm cooling fan
Dimension: 80 * 30 * 30mm
Intput Voltage: DC 12V
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


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):

【Easy to Use】12V input, 3.3-12V PWM/TTL control,Can be used for laser cutting machine and laser engraving machine, CNC, DIY laser, Arduino.
【Original Laser Diodes】Sharp 5.6mm Original laser diodes, High-quality, Ensure service life!
【20000hours service life】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!
【Clear focus】New lens, Clear focus, Not stray light, Adjustable focal length.
【Application Material 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 .
Note: NEJE Master comes standard with 12V2A charger. If you want to upgrade your old machine, you need to prepare another 12V3A power supply.
Package Included:
1 x 20W Laser Engraving Module
1 x 4 Pin Sport Cable
2 x Screw
2 x ABS cushion post
1 x L-shaped wrench

About DIY kit


If you want to purchase the whole machine,pls click the picture below to enter the link



About after-sales service>>

1.Lasers are sensitive electronic components that may be damaged by interference from external factors, although all NEJE lasers are produced with electrostatic surge protection and aging resistance.

2.Laser head provides 1 year warranty (after receiving the product).

3.Motherboard warranty for 1 year.

4. Machinery including motor assembly, 1 year warranty.



Additional information

Weight N/A
Dimensions N/A

20W Laser Module kit, 3500mw Laser Module, 7W Laser Module, 7W Laser Module Kit, Adapter 12V3A EUplug, Adapter 12V3A USplug, Module 20W

Ships From

China, United States


20W Laser Module kit, 7W Laser Module, Adapter 12V3A EUplug, Adapter 12V3A USplug, 7W Laser Module Kit, 3500mw Laser Module, Module 20W




There are no reviews yet.

Be the first to review “20W Laser Cutting / Engraving Module Blue Light With TTL / PWM Modulation for CNC”

Your email address will not be published. Required fields are marked *