A more powerful, safer and smarter laser module kit for engraver, 3D printer, CNC mill and replacement for Arduino project.

Features:
– Designed for laser engraver machine, laser cutter, 3D printer, CNC millling, replacement for arduino project.
– 2 in 1 focus, adjustable lens and fixed focal length in one module.
– 7.5W blue light laser, suitable for engraving and cutting.
– More Safety, built-in protective glass can effectively exclude the direct rays of the laser by 90%.
– Modified laser air assist, avoid smoke damage to the lens.
– More quiet, intelligent drive adjust the cooling fan speed according laser temperature.
– Easy to use. Digital PWM wave pulse signal generator adjustable frequency duty-cycle board replacement for NEJE laser module. 
– Sliding slot is provided for easy adjustment of focus.
– Engrave a wide range of soft materials: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum. 

Note: 
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 cause 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. 
8. It can also be compatible with other cnc equipment, such as 3D printers, CNC Milling, etc., but you need to master a certain knowledge of pwm waveform control.
9. Can Engrave: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum 
10. Can Not Engrave: Metal/Glass/Stone/Ceramics/PCB/Stainless Steel/Reflective Material/ Transparent Material 
 
Specifications:
Material: Aviation aluminum, brass
Laser Color: Blue
Module Input: 20-30W 
Optical Power Output: 7.5W (7500mW)
Wavelength: 445-450nm 
Beam Shape: Dot (Focusable) 
Working Voltage: DC 12V 
TTL&PWM Modulation: YES, compatible with Both TTL & PWM Modulation 
Input Voltage: DC12V 3A
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, the text instructions replacement for NEJE for temperature acquisition can be found on wiki. 
Drive Mode: External ACC 
Safe Temperature Range: <60 ℃ 
Module Weight: 202g (The lighter the weight, the smaller the move inertia, the better the performance) 
Life Time: 10000 ~ 20,000 hours
Cooling Mode:Temperature sensor intelligent control + 10000 rpm 40mm cooling fan
Section Size: 40*40mm
Adapter Plug: 5.5 2.1 port

Tester Board
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

Item Size: 6*4*4cm / 2.36*1.57*1.57in
Package Size: 16*11*6cm / 6.29*4.33*2.36in
Package Weight: 320g / 11.28oz

Packing List:
1 * 30W Laser Engraving Module 
1 * Laser Module Sliding Slot
1 * NEJE PWM/Temperature Tester Board
1 * 12V3A Power Supply
1 * EU Plug Adapter
1 * 4 Pin Cable(320mm Cable) 
1 * 2pin TTL Cable
1 * 2.5mm L-shaped Wrench 
1 * 5mm L-shaped Wrench 
1 * Goggles