Features:

 - Upgraded version: optimized air assist brings more powerful cutting performance; optimized diode package has longer lifespan and more stable performance.

 - Designed for laser engraver machine, laser cutter, 3D printer, CNC milling, replacement for arduino project.

 - 2 in 1 focus, adjustable lens and fixed focal length in one module.

 - 5.5W blue light laser, suitable for engraving and cutting.

 - More Safety, built-in protective glasses to protect eyes! Even without wearing protective glasses, the operation is more comfortable.

 - Modified laser air assist, avoid smoke damage to the lens.

 - Quiet design, intelligent drive can dynamically control the cooling fan speed according to the 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:

 *12V 3A power supply and goggles are not included in the kit.

 *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

 *Smoke will be generated when burned, please pay attention to smoke exhaust indoors.

 *Please wear laser goggles during usage and avoid touching the laser directly with your eyes and skin!

 Specifications:

 Heatsink Material: Aviation Aluminum + Brass Shell

 Luminous Color: Blue

 Module Input: 20-30W

 Optical Power Output: 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: DC 12V 3A

 PWM/ TTL Input: DC 3.3V-12V

 Input Interface: PH2.0-4Pin (+,-, PWM/ TTL, Temperature), 3Pin (+,-, PWM/ TTL) , 2Pin+2Pin (+,-) + (PWM/ TTL,-)

 NOTE: Temperature interface can be disconnected.

 Drive Mode: External ACC

 Safe Temperature Range: <60 ℃

 Module Weight: 210g (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 cooling fan (double ball bearing)

 Section Size: 40 * 40mm

 Adapter Plug: 5.5 2.1 port

 Item Size: 6 * 4 * 4cm / 2.36 * 1.57 * 1.57in

 Package Size: 16 * 10 * 6cm / 6.29 * 3.94 * 2.36in

 Package Weight: 440g / 15.52oz

 Packing List:

 1 * Laser Module

 1 * Sliding Slot

 1 * Interface Adapter Board

 2 * L-shaped Wrench (2.5mm, 5mm)

 1 * 4-pin Cable (300mm)

 1 * 3-pin Input Line

 1 * 2-pin Signal Line

 1 * Air Assist Tube (4mm x 2m)

 1 * Trachea Adapter

 1 * Single Screw Fixing 3D Mounting Piece (random color)

 1 * M3 Stainless Steel Gasket

 1 * Air Assist Tube (4mm x 2m)

 1 * Metal Tube

 1 * M3x16 Socket Head Cap Screw

 1 * User Manual (English)