Wanhao D7 UV LED COB Expand

Wanhao D7 UV LED COB

Wanhao Wanhao



Replacement UV LED COB for the Wanhao D7

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R 549.95

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The Wanhao Duplicator 7 is a fantastic new addition to the 3D Printing world and has made DUP or DLP printing far more accessible than ever before, but even these advanced machines need replacement parts from time to time. This is why we stock the Wanhao D7 UV LED COB, made to fit the Wanhao Duplicator 7 to act as the source for resin-hardening UV light.

This UV LED unit is placed underneath the resin-box and shines UV light directly up through the LCD display and the D7 FEP Film, which solidifies the resin on top of the film. It sits directly atop a cooling fan and heat sink, and then plugs into the main Wanhao D7 LCD Controller Board. Fortunately, this part is relatively easy to install or replace with the help of videos on YouTube, and requires very little electronics knowledge as well.


Wanhao D7 UV LED COB  -  Technical Specifications:

  • Power Rating

– 30W                                                      

  • Estimated Lifespan

– 50 000 Hours

  • Number of LED Chips

– 30

  • Heat Sink Included

– Yes


Instructions for Replacing the Wanhao D7 UV LED COB:

When replacing the Wanhao D7 UV LED COB in your printer, it’s important to remember to unplug the Wanhao D7 LCD Display ribbon cable before removing the case. This frees the cable from the case and helps to protect the cable from any potential damage. Once this is done and the cover is off, trace the power cables from the old LED COB to the power pins on the main controller board and then remove the corresponding connections – these should be the leftmost two points and should include one red and one black wire.

Once the wiring is disconnected, simply unscrew the old LED unit and carefully install the new LED unit in the same place – ensuring that the heat sink on the back of the LED unit is sitting atop the cooling fan. After fixing the unit in place, connect the new wires to the main controller board in the same orientation as the previous unit. Finally, put the cover back onto the machine and tighten all the screws so there is very little wobble, and remember to plug the LCD display ribbon cable back in.

This is how easy the replacement process is for the LED COB unit, and even beginners will be able to fix their machines with new LED units with the help of one or two videos on YouTube.


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Wanhao D7 UV LED COB

Wanhao D7 UV LED COB

Wanhao have been supplying 3D Printers internationally since as early as 2012, and have rapidly garnered a world-renowned reputation for quality machines, parts and components. After originally banding together as a group of friends and purchasing a Makerbot Thing-O-Matic, they created their own “Duplicator 1” 3D Printer, which was essentially a replica of the Thing-O-Matic, with slight modifications and alterations to make it better suit typical users.

Wanhao’s strengths have always stemmed from the fact that they are both 3D Makers and 3D Printer Manufacturers, which allows them to understand the needs of the end user when developing new models or upgrades. It is the same reason why they always make sure to stock spares of all of the different parts and components, because they believe that you should never have to buy an entirely new printer if one part breaks, and should instead be able to simply replace whichever part is broken.

There are few 3D Printing manufacturers with as much experience and reputation as Wanhao, which is why we have chosen them as one of our top suppliers here at DIYElectronics. Not only do they continue to bring out exciting new models and upgrades for existing models, but they also align with our own company culture and values by proactively supplying all of the spare parts that customers might need – so that you, as an end user, never have to source spares or alternatives if you have problems with faulty or broken parts throughout the lifespan of your 3D Printer.