Features:
With high quality material and excellent performance, our laser engraver model kit is sturdy and durable. Designed for Laser Engraver, 3D printer, CNC milling, Arduino project, etc.
15W optical power output, 4mm plywood from 1 pass (speed 200), 3mm black acrylic board from 1 pass. Able to engrave mirror finished stainless steel, but it needs good focus adjustment.
Cooling mode and quiet design: with temperature sensor inteiilgent control and 10000 rpm cooling fan, intelligent drive can adjust the cooling fan speed according to laser temperature.
Easy to use: digital PWM wave pulse signal generator adjustable frequency duty cycle board for NEJE laser module. Slidable mounting fixture is provided for easy adjustment of focus.
Equipped with protective glasses to protect eyes. Safer and more comfortable when using the machine.

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. If your laser module has any problem, please DO NOT dismantle it freely. It will destroy the laser module.
5. This laser module is compatible with our NEJE Master 2 Plus and Master 2 Max machines.
6. 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.
7. If you have any quality problem with the machine, please feel free to contact us. Many operating problems can be solved according to your video and problem description. Thank you.

40W General Specifications:
Model: NEJE Module 40W
Heatsink Material: Aircraft Aluminum + Brass Shell
Luminous Color: Blue
Section Size: 40 * 40mm / 1.57 * 1.57in
Cooling Mode: Temperature sensor intelligent control + 10000 rpm 40mm cooling fan
Can Engrave: MDF/ Balsa/ Paper/ Wood/ Fabric/ Plastic/ Mirror Finished Stainless Steel/ Leather/ Plywood/ Foam Paper/ Anodized Aluminum
Can Not Engrave: Metal/ Glass/ Stone/ Ceramics/ PCB/ Normal Stainless Steel/ Reflective Material/ Transparent Material
Dimension: 60 * 40 * 40mm / 2.36 * 1.57 * 1.57in
Package Size: 36 * 16 * 11cm / 14.17 * 6.30 * 4.33in
Package Weight: 700g / 1.54lbs

Technical Parameters:
Module Input: 30-40W
Optical Power Output: 15W
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 3-4A
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, NEJE provides text instructions for temperature acquisition on the wiki.
Drive Mode: External ACC
Safe Temperature Range: <60 ℃
Module Weight: 202g / 7.13oz (The lighter the weight, the smaller the moving inertia, the better the performance)
Life Time: about 10,000-20,000 hours

Digital PWM Wave Pulse Signal Generator Adjustable Frequency Duty Cycle for NEJE Laser Module Tester Board Specifications:
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

Package List:
1 * 40W Laser Engraving Module
1 * Laser Module Sliding Fixture
1 * 4 Pin Cable(1000mm)
1 * Digital PWM Wave Pulse Signal Generator Adjustable Board
1 * 12V 3A Power Adapter (US)
1 * EU Adapter
1 * Pair of Goggles
1 * 2.5mm L-shaped Wrench
1 * 5mm L-shaped Wrench

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1. WORLDWIDE SHIPPING. (Except some countries and APO/FPO)

2. Orders processed timely after the payment verification.
3. We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
4. The images shown are not the actual item and are for your reference only.
5. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
6. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
7. Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half.
2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your po#.
3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.
4.  We will bear all the shipping cost if the product(s) is (are) not as advertised.

1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.
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