Feature: 1. High Working Performance: The output power of this engraving module is 5.5W, can cut 3mm thick plywood cleanly at one time, with for NEJE Plus, the engraving speed can up to 1000mm per second, has high efficiency 2. Wide Compatibility: Widely compatible with other brands of engraving machines, 3D printers and CNC router machines, the corresponding application interface requires 3.3‑12V voltage, 1‑100% duty cycle, 0‑20kHz frequency 3. Intelligent Adjustment: Built in fast intelligent drive and double ball bearing high speed cooling fan, timely detect temperature, intelligent adjust the fan, feature good heat dissipation performance, and low noise operation 4. Easy Installation and Operation: The engraving module can be secured with spring clips without any screws, easy to install on the machine and to operate 5. Wide Range of Usage: Can engrave wood, MDF, leather, paper, cotton, etc. and can engrave stainless steel, glass, transparent acrylic after spraying, you can use for DIY commercial sign, greeting card, mini model, engraving children drawing Specification: Item Type: Laser Engraving Module Material: Aluminum Alloy Model: A30130 Fan Speed: 15000RPM (double ball bearing) Interface: PH2.0 4Pin Driven Design: Built in Input: 12V 4A Optical Power 5.5W Wavelength: 450nm Light Source: LD and C Lens Minimum Focus Size: 0.04x0.04mm Temperature Sensing: Yes Power Adjustment Method: PWM Duty Cycle PWM Input: 3.3-12V, 0-20KHz Continuous Work (cw): Unlimited Fan Speed Control: Yes Light Feedback: Yes Service Life: 20000h Maximum Cutting and Engraving Depth: Approx. 18mm/0.7in Cutting Speed (Plywood 3mm, with Air Assist, Sharply Edges): 120mm per minute, 100% power Brushed Stainless Steel Engravable: Yes. Package List: 1 x Laser Engraving Module1 x Trachea1 x Tracheal Adapter1 x Interface Adapter Board3 x Wire1 x Module General User Manual1 x Sliding Slot2 x Hex Wrench2 x Accessories2 x Screw2 x Nut2 x Washer