FB04-2500 2500mW 445nm Blue Laser Module 2*2.54-2P TTL/PWM Modulation DIY Engraver for EleksMaker

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About this item

What's the diference between FB03 Series and FB04 Series Laser Module? When or why do i need to have a FB04 Series Laser Module?
- It depends on what the interface for laser module on your controller board is like.
- The controller board of EleksMaker Series Engraver is designed with a 3-Pin (12V/GND/PWM) interface for laser module, so you need to buy a FB03 series module.
- If the controller board of some other no-name engravers is designed with 2*2-Pin (1 for DC voltage, 1 for PWM/TTL modulation) interfaces, then you need to buy a FB04 series module to fit it.


General Specification:
Model: FB04-2500
Heatsink Material: Aircraft Aluminum
Luminous Color: Blue
Section Size: 33mm x 33mm
Mounting Hole: M5 (central), M3 (around)
Cooling Mode: Heat Sink Groove, Cooling Fan
Adapter Plug: US Plug
Adapter Input Voltage: AC 100-240V
Adapter Output Voltage: DC 12V 2.5A
Can Engrave: MDF/Balsa/Paper/Wood/Fabric/Plastic/Leather/Plywood/Foam Paper/Anodized Aluminum
Can Not Engrave: Metal/Glass/Stone/Ceramics/Stainless Steel/Reflective Material/ Transparent Material
Technical Parameters:
Laser Power: 2500mW /2.5W
Wavelength: 445nm
Beam Shape: Dot (Focusable)
Working Voltage: DC 12V
TTL/PWM Modulation: YES
Power Input Interface: 2.54-2P
TTL Interface: 2.54-2P
Drive Mode: External ACC Constant Current Drive
Life Time: >10,000 hours

1. The voltage for power port((VCC, GND 2 Pins Port) is DC 12V, the voltage for PWM port (PWM, GND 2 Pins Port) is DC 5V.
2. 445nm 2500mW focusable blue violet laser module, with TTL or PWM functions (TTL and PWM are compatibe while TTL can control the switch and PWM can control the power).
3. Aircraft aluminum heatsink with cooling fan ensure long working time continuously.
4. Equipped with constant-current driver board ensure stable output optical power, low heat, no external driver board needed,easy to use.
5. Suitable for industrial laser engraving machine equipment usage.

1. Where is the TTL port? I can only see the PWM?

For this item, TTL and PWM is compatible and you can only choose one of them. It means that you can connect this module's PWM port to the PWM (or TTL) port on the control board of your engraver. But make sure the voltage supply of that port is DC 5V.

2. How can I connect this module to the my engraver, like EleksMaker A3?
If you don't need the PWM function, you can directly connect the power port to Motor Port (12V, GND) on Eleksmaker board and leave the PWM port unconnected.

3. What does the white button on the driver board do?
Press the button, the laser will switch to weak light mode and the LED light on the driver board keep shining. At this state, the laser beam can be used for positioning but not for engraving. Press it again, the laser will return to normal mode (for engraving).

Note :
1. Please wear laser goggles during usage, avoid to touch the laser directly to the eyes and skin! Keep away from children and pets.
2. Note that the laser module works less than half an hour in one time, and please wait until it has cooled down before continuing the work.
3. The warranty period of laser module is one month. If you have any quality problem(Except individual situation like using the laser module more than 30 minute one time and casue the damage ), please feel free to ask our customer service for a help. Thanks for your understanding.

Package Included:
1 x 2500mW Focusable Blue Laser Module
1 x Power Adapter

Shipping information

(1) FREE Shipping 10 - 15 business days, (2) Standard Shipping 7 - 12 business days.

Shipping and Delivery Estimates

We ship in-stock orders as soon as possible. This is often within two business days, but there are situations where it may take longer. All estimates are based on business days.


(1) The shipping time mentioned above refers to the estimated time of business days that the shipment will take after an order has been shipped.

(2) Business days do not include Saturday/Sunday and any public holidays.

(3) These estimates are based on normal circumstances and are not a guarantee of delivery times.

(4) We are not responsible for the failures or delays in delivery resulting from any force majeure event, such as natural disaster, bad weather, war, customs issues, and any other event beyond our direct control.

Return and exchanges

Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can't offer you a refund or exchange. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

for more information please visit our Refunds & Returns Policy page.