Set of 4 single AA battery holders that snap together to form either parallel or series connection.
By using these 4 battery holders you can get 1.5V, 3V, 4.5V or 6V (series connection) or get 4x current at 1.5V (parallel connection).
Great, versatile AA battery holders for any electricity project.
Build a model green house and 9 other green energy-related devices with this great kit!
Illuminate both your room and your mind with this ingenious Periodic Table Lamp.
This project book and sample kit introduces you to shape-memory alloy technology!
Build over 100 exciting electronic projects with this easy to use kit!
Learn about hydrogen fuel cells with this incredible kit!
See the solar system in action!
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