The Best 20W Laser Diode of 2022 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 20W Laser Diode of 2022. Check our ranking below.

2,702 Reviews Scanned

Rank No. #1

20W Diode Laser Module for CNC Machine 3018 PRO, Cylindrical Laser Engraving Module 5.5W Optical Power for Wood and Metal, Fix Focused & Compressed Spot

【Cylindrical Design】This laser module is specifically designed to be compatible with CNC3018/3018Pro cnc router machine, ensuring that it will fit perfectly into your existing setup
【Fix Focused & Compressed Spot】With a fixed focal point of 5mm, this laser module is perfect for achieving precise and accurate engraving results. Whether you're working with wood, MDF, or stainless steel, you can expect clean and sharp lines every time. The laser module utilizes compressed beam technology, which produces a concentrated beam of light that is ideal for accurate and efficient engraving
【Easy To Setup】The laser module comes with two cables that have different wire sequences, making it easy to connect and integrate with your CNC3018/3018Pro engraving machine. This ensures that you can get up and running with your new laser module quickly and easily
【Widely Used】This laser module is capable of engraving a wide range of materials, including wood, leather, MDF, stainless steel, lacquered metal, etc. Whether you're looking to engrave a logo on a wooden sign or add a serial number to a metal part, this laser module can handle the job with ease
【Customer Service】We are proud of our customer service and providing 1-year warranty and technical support for our products. If you have any problems when using the product, please let us know

Rank No. #2

ZBAITU F20VF 20W Laser Module Kit, 20-22W Output Power Diode Laser Module for Laser Engraver Cutter, 20W Laser Engraver Head with air Assist System for Laser Engraving Cutting Machine, 24V

【Thicker Cutting & Fast Engraving】ZBAITU F20-VF laser module has 20-22w laser power, ability to cut 20mm wood and 15mm acrylic, one pass cutting 12mm plywood and 8mm black acrylic. Thanks to its powerful output power, the engraving speed is increased by 200% compared to the 10W laser module. Save you time. 【Please Note】When you feel that the laser's cutting ability has weakened, you need to clean the lens of the laser module.
【Ultra-fine Compressed Spot】Adopts the newest FAC Compressed spot technology, F20-VF 20w laser module has 0.08*0.08mm ultra-fine laser spot. So engraving marks are more delicate and cutting lines are thinner.
【Quick Cooling System】The dual-side cooling fan design allows the F20-VF laser head to work continuously and with more stable power during engraving and cutting. The service life is longer than other 20W laser modules.
【With Air Assist Input】 F20-VF laser module with air assist input system, equipped with a 6mm caliber air tube, airflow input is stronger than other 20W laser modules that equipped with 4mm caliber air tube.
【Wide Compatibility】F20-VF laser module is equipped with 24V power supply and dovetail slider, can be installed and on most laser engraving and some cnc router machines (if you are not sure if it can be installed on your machine, please contact us before placing order). Equipped with 3 adapter cables(Yellow label for NEJE, Red for Atomstacks and Green for xTool D1, please note not suitable for D1 Pro).

Rank No. #3

LASER TREE Laser Engraver Module, 4W Optical Power Laser Head, Laser Engraving Cutting Module, Adjustable Focal, 450nm Laser Head for Laser Engraver Cutter Machine DIY Wood Paper Leather etc

【20W Laser Module】4W (4000MW) optical laser power output. Line width is narrower and suitable for ordinary plywood; Adjustable laser head(Adjustable focus: 20mm - 50mm), easy to adjust, ensures engraving with good quality and high efficiency. 4W optical laser module can cut through 1-2mm Plywood in one pass. Electric power: 20W
【Original Diode with FAC】The Blue Laser module with original diode, high stability, high efficiency, and high quality. Bright blue-violet light, easy to locate when engraving. Adjustable focus laser head suitable for DIY engraving machine, three-axis engraving machine, upgrade or replacement, easy to install.
【Eay to Assemble】This diode laser module is small, compact, convenient, and easy to install. Size: 35*35*99.6mm. Wavelength: 450nm; Input: DC 12V 1.6A(1.4-1.8A); Power adjustable: Support 5V PWM modulation; Input port: XH2.54-3P socket; control line installation method: pluggable. Package include: 1*laser module, 1* 3pin cable
【Widely Use Materials】The laser engraving module can be used to engrave MDF, wood, paper, leather, bamboo, plastic, rubber, alumina, stainless steel, etc. (🔺Unable to engrave with blue/purple/white/transparent material, aluminum without oxide layer) Note🔺: Please wear appropriate safety glasses when using the laser module to prevent laser light, even any reflections from entering the eye
【Comprehensive & Trustworthy After-Sales Service】Our modules are suitable for PWM signal controlled laser engraver laser cutter machines, cnc machines and 3D printers and so on. But due to the many brands and models of machines, not all of them can be plug and play. If you need a pre-sale consultation of the laser module or encounter any problems, please feel free to contact us directly. We will troubleshoot and solve the problem for you!

SaleRank No. #4

20W Laser Module, 5.5W Optical Power Laser Engraving Module Kit, Compressed Spot, Fixed-Focus Laser Cutter, 33 Pofile Black Laser Head for 2/3-Axis Engraving Machine (4240/3018/3020/4540 CNC Router)

🥇【Widely Application & 33 Profiles】 The engraving module is compatible with most engraving machines. Including 2-axis engraving machine (4240 engraving machine, etc.), 3-axis CNC Router Machine (1610 pro /3018/3018 pro/3018 MAX/4540/3020 CNC engraving machine, etc.). PWM TTL 5000mW optical power output. Equipped with high quality diodes to produce an excellent beam that is reliable, stable, efficient and low noise. With very good engraving speed and working effect.
🥇【Easy to Install & Fixed-Focus Design】5mm Fixed-focus laser module, just place the 5mm fixed focus plate just above the engraved object and then you can focus. Easy installation: fix the laser module first, sjust connect the 3-pin cable to the cnc machine control board port.
🥇【Excellent Dual Heat Dissipation】 Equipped with aluminum body and large cooling fan to help dissipate heat quickly and ensure the module works continuously. Ensures a safe and quiet engraving working environment. The service life is greatly increased.
🥇【Multiple Applicable Materials & Value for Money 】Our laser module is ideal for engraving, cutting and marking. It can engrave plywood, cardboard, leather, paper, fabric, acrylic, stainless steel, coated metal, PVC, bamboo, etc. It can give you better creative efficiency and results, just enjoy your DIY!
🥇【After-sales service】The laser head has a one-year warranty period, during which we will replace the parts for you free of charge. If you have any problem, please feel free to contact us, we will reply and solve your problem professionally within 24 hours.

SaleRank No. #5

Comgrow 20W Optical Power Laser Module with Air Assist Nozzle Ultra-Fine,Focusing Knob,Compressed Compatible Spot for Most Laser Engraver and Cutter Machine 12/24V

Wide compatibility: The comgrow 20W laser module is easy to install on different laser cutting and engraving machine frames, including Z1, D1, D1 Pro, Laser Master 2/2 Pro/3, thanks to the multi-hole positioning on the back of the two laser module mounting plates that are included.It also comes with an adapter for compatibility with different voltages and pins between the machine and the module.
Excellent engraving and cutting capabilities: The comgrow 20W diode laser module can directly engrave the mirror, cutting 20mm wood and 15mmy acrylic in just one pass, and even cutting 0.1mm stainless steel plates. The laser head uses beam compression spot technology to combine four laser beams into one powerful and precise 20-watt beam. The finer beam and longer effective energy range enhance its cutting capabilities
Fast focusing: For better and easier focusing, laser module have an adjustable focus module that allows the focus to be freely adjusted according to a scale.For laser engraving,the recommended focusing height is 8mm;For cutting,when the height of the cutting object is less than 10mm,the recommended focusing height from the height of the cutting object is 8mm.When the height of the cutting object is greater than 10mm, the recommended focusing height from the height of the cutting object is 4mm
Can be directly any air-assisted system:Since high power laser cutting work can easily make the material scorched or the cutting edge unclean, the Comgrow laser module is equipped with a nozzle directly connected to the air-assisted system, which helps keep the material edge clean during the cutting process. The laser module also has built-in heat dissipation to improve the efficiency of the laser cutting machine, which ultimately saves time and results in a more aesthetically pleasing workpiece
Safety:For high power laser products, safety is very important. the comgrow 20W laser module is equipped with an emergency stop button and our adapters and laser modules have received several international safety certifications including FCC, FDA, CE and ROHS

Rank No. #6

LASER TREE 20W Optical Power Laser Module for Laser Engraver Cutter, 80W Laser Engraver Module with Air Assistance, High Accuracy Quad-Compression Spot Laser Head, Engraving 340+ Colors On Metal Steel

🏆【POWERFUL LASER MODULE】Experience the true power of LASER TREE's 20W laser module with an optical power output of up to 24W. High power 20W laser cutter module cutting 10mm bass plywood by one pass, and cutting 8mm black acrylics in one pass. Engraving speed up to 24000mm/min. Whether you're a professional or a hobbyist, this powerful laser module will help you achieve the results you need
🏆【ULTRA-FINE COMPRESSED SPOT】LASER TREE 20W laser head with 4pcs 5W beam-compressed laser diodes. Quadruple compression spot (0.08*0.08mm) makes the engraving and cutting more powerful and precise. It is able to cut 30mm wooden boards, 30mm acrylic sheets, and 0.1mm stainless steel. With the ability to engrave over 340 colors on metal stainless steel, the 20W module gives you more possibilities for your creations
🏆【EFFICIENT & SAFETY】20W laser module with a professional air assist system can make cutting deeper and get cleaner material edges. Recommended: DC-30A-24 V air pump. Built-in fan cooling system, fan Speed 10000 rpm. Cool efficiently to prolong service life. Original diode, high quality, lifetime up to 20,000 hours. The red laser shield filters 97% of UV rays to protect your eyes and those around you. And a 3-in-1 bracket for fan protection, fixed wires, and air ducts has been added to the top of the laser module
🏆【WIDE COMPATIBILITY & EASY TO USE】Compatible with PWM-controlled laser engraving machines, laser cutting machines, CNC machines, and 3D printers. The included accessories can be easily integrated into your existing machine. Equipped with adapter board & power adapter that are compatible with different voltages and pins between the machine and the module. The focus lever design makes it easier to adjust the focus. And the mounting bracket makes it easy to mount the module on the machine
🏆【TECHNICAL SUPPORT & AFTER SERVICE】 To ensure 100% operation of the laser module, please use the adapter board and 24 V external power supply provided by us. If you need pre-sale consultation or encounter any problems, contact us on Amazon or the website. Note: Regular cleaning and maintenance of the lenses will maintain good cutting results and obtain a longer service life

Rank No. #7

ORTUR 20W Laser Module LU3-20A, Higher Accuracy 0.08*0.08mm Compressed Spot Laser Head for All ORTUR Laser Engraver, Dual Fan Cooling, 380+ Colors On Metal Steel Engraving (Must Used with Air Assist)

👍Compatible With All Ortur Lasers - Ortur LU3-20A 20W Laser Module Is Compatible With Ortur Laser Master 2, 2-S2, 2Pro, 2Pro-S2, Master 3 And Laser Master 3 Le Laser Engravers. It Must Used With Air Assist.
👍20W Laser Head Output Power - Ortur LU3-20A Laser Head Comes With The Four 5w Laser To Achieve True 20W Laser Power. 20W Is Laser Output Power, And 80W Is The Machine Power Of The Laser Engraver And Cutter. It Is Able To Cut 30mm Wooden Boards, 30mm Acrylic Sheets, And 0.1mm Stainless Steel.
👍380+ Colors On Metal Engraving- Ortur LU3-20A 20W Laser Module Enables Colorful Pattern Engraving. It Can Engraving 380+ Colors On Metal Stainless, Make Your Artwork Colorful.
👍Ultra-Thin Compressed Spot - Ortur LU3-10A 20W Laser Head With Ultra-Thin Compressed Spot 0.08*0.08mm, The Engraving Process Is More Refined, Especially When Sculpting Portraits, The Effect Is Particularly Outstanding.
👍Dual Fan Cooling & More Stable - The 20W Laser Module Is Equipped With a Dual Fan Cooling Design, The Optimized Cooling System Ensures The Stability Of The Laser Module For Long-Term Operation, With No Power Off Due To Overheating.

Rank No. #8

xTool D1 Pro 40W Diode Laser Module Only for xTool D1 Pro 5W/10W/20W Laser Engraver Cutter, Higher Accuracy Laser Engraving Machine for Engraving 340+ Colors On Metal Steel, Better for Cutting

【The World's First 40W Diode Laser Module】xTool D1 Pro 40W laser beam with 8*5.5w passing through a reflector achieves the world's first 40W diode laser module. The highest power comes with the strongest laser cutting engraving among all the diode lasers. It cuts 18mm of wood or 15mm of black acrylic in one pass.
【Highest Productivity with Highest Power Laser Module 】With the 40W highest power laser, it can cut faster than 20W power lasers and increase efficiency by 200-250%. Unleash your creation potential with larger and thicker materials at a faster pace.
【Higher Accuracy with Ingenious Mechanical Structure】For more accurate and stable work, we have upgraded the X-axis beam specifically for the 40W laser module. Sturdy structure design makes xTool D1 Pro more stable with high silence and has a longer service life.
【Excellent Cooling System Ensures Optimal Performance】With the excellent cooling system containing a laser fan and the meticulously designed internal structure, the heat generated by the 40W ultra-high laser module can be quickly dissipated and the temperature is controlled to ensure optimal processing performance.
【Fast-assembled with Brand New Design】With the built-in air tube, you can plug in the air tube and connect air assist accessories directly. No external adapter parts are needed. This laser head adopts a magnetic suction design for the light shield, which is convenient for shield installation and removal.

Rank No. #9

ORTUR Laser Engraver, Laser Master 2 S2 LF, 20W Laser Engraving Cutting Machine, 0.17*0.25mm Fixed-Focus Compressed Spot Eye Protection 5.5W Output Power Laser Cutter for DIY Metal, Wood (390x410mm)

✅Ultra-Fine Compression: Ortur Laser Engraver has 32-bit professional motherboard, which is smarter, faster, more accurate and easier to use. Output power is 1W-1.6W, Engraving area is 390*410mm. Ultra-fine laser focal area is reduced to 0.17*0.25mm, The engraving machine speed can be as high as 5000 mm/min. The laser cutter can cleanly cut 6mm pine board in one pass. The laser cutter comes with an air assist nozzle, use with our air pump could support a higher speed and cut better.
✅Safety protection: Laser Engraver newly upgraded Safety protection. 1. There is a G-sensor on the motherboard, When the engraving machine is displaced or tilted, it will automatically stop the laser; 2. If your computer system halted or USB cable disconnected, led to that the laser engraver stops moving, the laser beam will stop, to prevent fire. 3. The engraving machine is turned on, but there is no movement for a long time, the laser will be turned off automatically.
✅New eye protection design: The laser engraving machine with newest panoramic filter glass protective cover plays a very good role in protecting your eyes, filtering 97% of the ultraviolet light to perfectly protect your eyes to reduce the cost of your goggles and the inconvenience of wearing goggles.
✅Extensive Compatibility & Uses: Ortur laser engraver and cutter can engraving cylinders by add to rotaty rollers. Unleash your creativity on over one hundred materials including paper, bamboo, wood, leather PCB board, aluminum oxide, metal, glass, etc.compatible with various mature engraving software, such as LaserGRBL(Free), LightBurn(Paid). The ORTUR laser cutter supports Win 7 / Win 8 / XP / Win 10 / Win 11, and also support MacOS and Linux system.
✅Quality and Assurance: The entire engraving machine adopts a modular design, which is convenient for users to assemble, repair, and replace and update machine parts. We are the manufacturer of ORTUR. We only provide Amazon customers with the best quality and comprehensive pre-sales and after-sales services. The engraving machine enjoys a one-year warranty. If the engraving machine fails during the warranty period, please contact us.

Rank No. #10

BTF-LIGHTING AC100-240V to DC12V16.5A Max198W Suit for DC12V 1A~16A Switching Power Supply Device Power Supply Adapter Converter for LED Strip Module,CCTV Camera,Security System,Radio,Cats

Input: 110V-220V 50/60Hz; Output: 12V DC up to 16.5 Amps Max; The output voltage can be regulated by ±10%, from 11.5V to 12.5V, Works with device that draws less than 16.5A, such as DC12V1A~16.5A.
The default input voltage is 220V, 110V/220V must be selected by switch before using to avoid damaging. Please replace the switch with the voltage appropriate for your project. High-quality raw materials, porous metal shell, good heat dissipation performance, small size, strong performance stability, only support indoor use.
Make sure your device match the 12V voltage and wattage less than 198W. Please don't run it overload .The max use should be no more than 80% of the full loads,otherwise, It's cause the power supply to overheat,the service life of the power supply will be greatly shortened.We recommend you to use this 12V16.5A 198W power supply to power devices less than 158.4W.
Safety features: Automatic overload cut-off, over Voltage cut-off, automatic thermal cut-off, short circuit protection. Enough 198W output power and 12V stable output voltage will protect your electronic products from destruction.
It is perfect for all 12V projects, such as WS2811 / WS2815 / 5630 / 5050RGBW / 5050RGB LED Strip / LED Pixel / LED Matrix / LED String / CCTV Camera / Security System / Computer Project, etc.

Last update on 2023-08-13 / Affiliate links / Images from Amazon Product Advertising API

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Brand Value: Every brand of 20W Laser Diode has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
Features: What bells and whistles matter for an 20W Laser Diode?
Specifications: How powerful they are can be measured.
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Customer Ratings: Number ratings grade 20W Laser Diode objectively.
Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 20W Laser Diode.
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FAQ:

Q: What is a laser diode module?

A: Laser diode modules consist of a laser diode, which is what produces the actual laser beam, and the module, which holds and protects the diode. Laser diode modules are much more common and practical than conventional gas lasers because of their small size, low cost, minimal power usage, and narrow beam.

Q: What is a laser diode driver?

A: Laser Diode: The function of the Laser Diode Driver is to provide current to the laser diode. The wavy arrows indicate light exiting the package. A huge array of applications exist for laser diodes.

Q: What is a laser driver?

A: Our laser drivers/controllers are designed for driving laser diodes with high stability, low noise, and/or high power efficiency. These are some of the functions diode laser drivers provide: laser current setting and monitoring, control loop good indication, driving mode indication (for dual mode versions), stand-by, and shut down.