How to Dim a Super Bright Book Light

Introduction: How to Dim a Super Bright Book Light

About: I'm a high school student who loves making and hacking stuff!

Have you ever been reading with a book light at night and found it to be too bright? Here's a simple way to dim your book light without permanently changing it. This method reduces the amount of voltage supplied to the light, thus reducing the brightness. This will work with book lights that are powered by two button cell batteries. 

Step 1: Gather Your Supplies.

Step 2: Remove Battery Cover.

Step 3: Take Out One of the Batteries.

Step 4: Get the Foil.

Step 5: Fold in the Corners.

Step 6: Fold Them in Again.

Step 7: Shape It So It Is About the Same Size As the Battery.

Step 8: Install the Shaped Aluminum Foil Over Top of the Existing Battery.

The aluminum foil is acting like a spacer. It conducts the electricity, but doesn't add any additional power. 

Please note that only one of the original batteries remains in the book light. 

Step 9: Put the Cover Back on and You Are Done!

Be the First to Share


    • Make it Fly Challenge

      Make it Fly Challenge
    • First Time Author Contest

      First Time Author Contest
    • Backyard Contest

      Backyard Contest



    5 years ago

    Awesome! Thanks for posting! I had several book lights that were too bright for my husband. I just took one of them and did this and it is now perfect!