Listing is for a single NDB7875 445nm 9mm Laser Diode in a 12mm copper module with thermal back half, leads and G-2 glass lens. 


The copper module upgrade provides a huge  improvement  in thermal conductivity over the standard brass module for moving the heat away from the diode to your heatsink which gives a much more stable output from the diode.


Don't attempt to connect the diode directly to a fixed voltage source like a battery. The diode requires a proper laser driver to operate.
Laser Drivers In Stock

I have options for this diode in modules with the driver installed see these


If your application is for CNC Engraving check out my CNC page with lots of links to tutorials and recommend parts, software and modulating drivers suitable for CNC.
There are many other proper laser drivers but be careful a lot of sellers here are offering LED drivers as a laser driver which can damage or cause shortened life to the diode. LED drivers are not laser drivers. LED's are tough as nails but laser diodes are much more sensitive and need extra features like soft start, overshoot protection and a very low noise output that are standard on laser drivers but not included on LED drivers. I have seen a a few tutorials for building a "cheap laser" with this LED driver but it is a bad idea as I see it causing a lot of diode deaths. If you do use a LED driver you do so at your own risk.



Testing on these diodes has shown they will land in the 2.5W-3.3W range with a 405-G-2 Lens.


Check out this 3W build.
!! 3 Watt BIG BOY single diode blue laser 3X18650 !!! ULTRA HEAVY PICTURES !!!

These are new diodes that are pulls from a brand new never used DLP projector. 

Datasheet



Here is what you get. A NDB7875 445nm 9mm Laser Diode In A Copper Modules With Leads & 405-G-2 Glass Lens. 





Here is a macro shot of the diode without the can. If you see the fifth wire from the right is the ESD protection.




Here is a close up on it.






NDB7875 9mm 445nm Laser Diode






Here is a quick power test on this diode with a G-2 Lens



























*Disclamer*

By purchasing these diodes you are agreeing to the following.
- You are over 18 years of age . 

- You understand that these components that are mentioned above are dangerous when not properly assembled into a finished product. 

- You will use these as components and properly incorporate them into a finished product. 

- You will use these diodes/modules in a safe and responsible manner and for a legal purpose. 

- You are legally responsible for the use of these components, improper use of these components or their end products. 

- You are legally responsible for any injury to anybody resulting from the use of or assembly of these components or their finished products. 

- You Accept this diode/module as a COMPONENT for integration in a system of YOUR OWN design and will be legally responsible from any and all LIABILITIES These Diodes and Modules are sold solely as a component for incorporation into the customer's end products. Therefore, this diode/module is exempt from compliance with the appropriate requirements of FDA 21CFR, section 1040.10 and 1040.11 for complete products.