This mini 3V green COB light bulb is a perfect complement to any electrical science project or demonstration. This white COB bulb will make your electrical science project light up and stand out among the competition at the science fair. Great for projects involving basic electricity circuits, battery holders, solar cells, motors, buzzers, and much more! Each bulb will last about 20,000 hours.
Cool new Pi tee featuring ultra soft and light blue 100% cotton shirt.
Build your own windmill generator kit by recycling a plastic bottle!
Check out this high-quality gyroscope!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
Build a robot that's an artist too!
Explore the wonders of wind power with this amazing kit!
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