MudWatt Classic Kit Click on images to enlarge

Starting From: $39.99

MudWatt Classic Kit

Explore the power of microbes with the MudWatt™ Microbial Fuel Cell (MFC) Kit. Simply fill this kit with soil from your backyard (or someone else's backyard), along with anything you find in your refrigerator. Within days the attached LED light will start to blink using only the power produced by the electricity-generating microbes in your soil!

The MudWatt™ is the perfect educational kit for classrooms and hobbyists since it incorporates a wide range of scientific topics. It's easy to incorporate the MudWatt™ into a class discussion on microbiology, soil chemistry, electrochemistry, or electrical engineering. The MudWatt is a fun and educational science kit that uses the natural micro-organisms found in soil to generate electricity.

Within a few days, the MudWatt’s LED light will start to blink using the power generated by bacteria within your dirt. Within a week, you’ll be able to power a digital clock and thermometer - no batteries needed!

  • Experiment with different types of dirt (and things in your refrigerator) to see which are most powerful through open-ended scientific investigation.
  • Track the growth of your MudWatt's power and bacteria population and unlock new chapters of a comic with the free MudWatt Explorer App (available on iTunes and Google Play)!
  • Dig deep into the science with tons of lesson plans and other EDUCATIONAL RESOURCES available for classrooms and science fairs!
  • Enjoy discovery with one of the most creative, interdisciplinary STEM educational toys for the modern world: microbiology, chemistry, and electrical engineering all in one kit!

Microbial fuel cells (MFCs) are bio-electrical devices that harness the natural metabolisms of microbes to produce electrical power. Within the MFC, microbes munch up the sugars and other nutrients in their surrounding environment and release a portion of the energy contained within that food in the form of electricity.

Microbes are ubiquitous throughout virtually all soils and sediments on the planet. Among these diverse communities of microbes are particular species with unique metabolic abilities that enable them to expel electrons onto oxidized metal compounds, such as rust. In a sense, these so-called “electrogenic” microbes are able to “breathe” metal compounds much like humans and other organisms breathe oxygen. MFCs employ these unique abilities by providing the electrogenic microbes with a certain configuration of two inert, graphite-based electrodes placed in environments with different levels of oxygen (see figure at right).


Classic Kit Includes:

  • 1 Complete MudWatt Unit (1 Anode, 1 Cathode, 1 Vessel, 1 HackerPack)
  • 1 20-Page Educational/Instruction Booklet
  • 1 Pair of Black Nitrile Gloves
  • MudWatt Explorer App (available on iTunes and Google Play)

MudWatt Classic Kit

Part# Keego-MW-Classic


Customer Reviews


    by on


    Location: MALAYSIA

  2. Let the games begin!

    by on

    I followed these guys on kickstarter and bought 2 of these for my 7 year olds. We have had a blast mixing up various concoctions of decomposing matter to see whose mudwatt starts producing energy the fastest. So far the score is 3-5 in favor of my daughter. She wont let my son forget it. Haha.. We bought the add on clock which id also recommend. Hoping they will come out with a larger version to power a small flashlight or that could use to recharge a battery. Not sure if feasible or not but just something to consider... Cool product overall. Buying a few more for the cousins so we can have some long distance competitions. Game on!