This item is a necessary accessory for Master series DIY engraving machine. It is a professional laser head with high speed and high stability.
Recommend to use the CNC model (NC.file/G-code file) to cut.

Features:
【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, compatible with Arduino, suitable for Master series DIY engraving machine, easy to install.
【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.
【Professional Adjustable Laser Head】Easy to adjust, ensure engraving with good quality and high efficiency, and more durable and stable after high temperature and long time aging.
【Bright Blue Light】easy for locating when engraving.
【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)

Specifications:
Laser Power: 3500mW / 6000mW / 7000mW / 20W (Optional)
Model: NEJE module 5.5W (INPUT about 20W)
Heatsink Material: Aircraft aluminum + brass shell
Luminous Color: Blue
Laser Diode: NUBM0A with NEJE cap technology
LD Current: 3.2A
Section Size: 30 * 30mm
Cooling Mode: 40mm copper core + heat sink groove+ thermal silicone grease + 15000 rpm cooling fan
Input 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
Module Weight: 202g (The lighter the weight, the smaller the move inertia, the better the performance)
Item Size: Approx. 110 * 30 * 30mm / 4.33 * 1.18 * 1.18in
Package Size: Approx. 20 * 15 * 3cm / 7.88 * 5.91 * 1.18in
Package Weight: Approx. 224g / 4.73oz

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 ℃
Life Time: 20,000 hours
Item Size: Approx. 110 * 30 * 30mm / 4.33 * 1.18 * 1.18in
Item Weight: Approx. 202g / 7.14oz
Package Size: Approx. 20 * 15 * 3cm / 7.88 * 5.91 * 1.18in
Package Weight: Approx. 224g / 4.73oz

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

Packing List:
1 * Laser Engraving Module
1 * 4 Pin Sport Cable
2 * Screw
2 * ABS Cushion Post
1 * L-shaped Wrench

Note(Please pay attention):
1. Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin!
2. It is not possible to directly engrave the metal with strong mirror reflectivity, which may cause injury to the operator or burn the laser.
3. Master series engraving machine comes standard with 12V2A charger. If you want to use 20W laser head, you need to prepare another 12V3A power supply.(except Master 20W engraving machine)
4. Pay attention to fire, pay attention to pets when working.
5. Smoke will be generated when burned, please pay attention to smoke exhaust indoors.
6. This laser module is compatible with the NEJE machine.
7. If your laser module has any problem, please DO NOT dismantle it without our permission. It will destroy the laser module.
8. 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.