DIY USB LED Bulb & Fan 2-in-1: A Simple Guide


Creating a DIY USB-powered LED bulb and fan combo is an exciting and useful project for anyone who loves DIY electronics. This compact gadget can be powered by a USB port and serves as an energy-efficient light source and cooling fan, ideal for workspaces, camping, or emergency use. In this blog post, we'll cover the materials required, a step-by-step action plan, and reviews of similar products to inspire your creativity.



Action Plan

Step 1: Gather Materials

  1. USB cable (repurpose from an old charger or buy new)

  2. 5V LED bulb (small size for USB compatibility)

  3. Mini USB fan module (available online or at electronics stores)

  4. Heat shrink tubing or electrical tape

  5. Soldering kit (iron, solder, flux)

  6. Small project box or casing (optional)

  7. Wire cutter and stripper

  8. Glue gun or adhesive tape

Step 2: Prepare the USB Cable

  • Cut the USB cable to expose the wires inside.

  • Strip the insulation to reveal four wires: red (positive), black (negative), and two data wires (green and white).

  • Trim the data wires as they are not needed for this project.

Step 3: Connect the LED Bulb

  • Solder the red (positive) and black (negative) wires of the USB cable to the corresponding terminals of the LED bulb.

  • Secure the connections using heat shrink tubing or electrical tape to avoid short circuits.

Step 4: Attach the Fan Module

  • Similarly, solder the fan module’s power wires to the USB cable’s red and black wires.

  • Ensure that both the LED bulb and fan share the same power source.

  • Test the connections by plugging the USB cable into a power bank or USB port.

Step 5: Assemble the Components

  • Mount the LED bulb and fan in a project box or casing for protection and aesthetics.

  • Secure the components with a glue gun or adhesive tape.

Step 6: Final Testing

  • Plug your DIY USB gadget into a USB port and test the functionality of both the LED bulb and fan.

  • Make any adjustments if necessary to improve performance.





Reviews of Similar Products

  1. USB LED Light Fan Combo from Online Stores

    • Pros: Compact design, easy to use, lightweight.

    • Cons: Limited brightness and airflow.

    • Inspiration: These products use similar principles but often lack customizability.

  2. DIY Enthusiast Reviews

    • "This DIY project is perfect for beginners in electronics. It’s affordable and practical." — John Doe, DIY Blogger.

    • "I love how you can customize the brightness and fan speed to suit your needs." — Jane Smith, Engineer.

  3. Performance Compared to Store-Bought Models

    • DIY projects often perform better due to customization options, although they may require more effort to assemble.


Why Build This?

  • Sustainability: Repurpose old electronics like USB cables.

  • Customization: Adjust the LED brightness or fan speed according to your preferences.

  • Cost-Effective: Spend less compared to purchasing a ready-made product.

  • Learning Opportunity: Enhance your knowledge of electronics and circuit building.


Stay tuned for more innovative DIY ideas. Let us know in the comments about your experience building this USB LED bulb and fan combo!



Here are some notable electronics-related projects recognized by Guinness World Records:

Longest-running Humanoid Robot Development Programme
Initiated by Honda Research & Development Co. in 1986, this program has been developing humanoid robots, including the renowned ASIMO, for over three decades.

Guinness World Records

Fastest Solid-State Amplifier Integrated Circuit
Developed by DARPA's Terahertz Electronics program, this circuit achieved speeds exceeding 1 terahertz (1 trillion cycles per second), setting a new benchmark in 2014.

Panasonic's Evolta Battery Challenges
Panasonic's Evolta batteries powered various record-setting feats, including the longest distance swum by a robot on a single set of AA batteries and the longest distance traveled by a vehicle on a railway track powered by dry cell batteries.

Highest Voltage from a Solid-State Device
In May 2024, Mitsubishi Electric Corporation was recognized for achieving a record voltage with their advanced silicon carbide metal-oxide-semiconductor field-effect transistor (SiC-MOSFET).

World's Largest Functional Smartphone
In September 2024, YouTubers Arun Maini and Matthew Perks built a fully functional, 6.74-foot tall iPhone 15 Pro Max, setting a Guinness World Record for the largest smartphone replica.