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Velleman MK102: Flashing LEDs Minikit

Velleman MK102: Flashing LEDs Minikit

Velleman MK102

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Velleman Flashing LEDs Minikit - Soldering Required

The Velleman MK102 Flashing LED Minkit is a good beginner kit for learning soldering. The flashing LEDs can also be used for model construction and a variety of other applications once the kit has been completed. Because of the close proximity of the connectors, this minikit is recommended for beginner hobbyists with supervision.

For a similar soldering minikit, try the Velleman MK107.


  • Two alternating red LEDs
  • Two potentiometers for adjusting flashing speed
  • Difficulty level: Easy


  • Consumption: ± 8mA
  • Power supply: 9V battery - Not Included
  • Dimensions: 1.3" x 1.25" x 0.6"

Additional Information

Difficulty Level 1
  1. just what i needed review by nikkonco on 3/16/2017

    I used the kit to add flashing led clearance lights to my star trek model. Thanks a bunch.

  2. Great review by Hugh on 10/2/2016


    Mine is a small layout but I do have a remote control panel. Here, I have colored flashing LEDs to indicate diverging tracks on the layout. The color of the flashing LED corresponds with the color of the diverged track on the panel graphics.
    One location I needed a flashing bi-color yellow/green LED.
    Enter Velleman kit MK102. I used this with a single three leg yellow/green 5mm LED wired from positions LD1 and LD2 with combined anode.
    Worked fine.
    Ordered on Sunday. Project completed Tuesday PM.
    Thanks Velleman.

  3. Great starter kit review by Solder-Sucker on 6/9/2015

    Bought the MK102 to teach my nephew how to solder. He loved! We loved! Thanks Velleman!

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Assembly manual

Info Sheets

Overview of Velleman modules that are equal to D.I.Y Kits
This sheet is useful when you want to know which modules you could find in the do-it-yourself range of Velleman Kits and minikits.

Frequently Asked Questions

Q. I bought 2kits I assembled the first no problem. The second assembled one led is very dim. Can you help me out. Thank you


We're sorry to hear that. Please reach out to our Tech Support team at techsupport@vellemanusa.com and provide a detailed description of the issue. Pictures of the assembled kit and solder joints are greatly appreciated. 

Q. hello. Can the MK102 kit be used with a 12 VDC power supply instead of a 9v battery? thank you.


You can use a 12V supply, however it wouldn’t hurt to increase the values of R1 and R2.  Maybe to 1.2k ohm and only use a regulated 12Vdc supply. 

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 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product