Build a Simple, Waterproof Bike Light from Two Bottle Caps

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If you love biking around town, especially at night, you want to make sure you’re seen. This little DIY light activates automatically as you bike, and is super easy to make.

This light is useful for more than just biking, too. It’s basically a small, bright, cheap, waterproof light the size of a bottle cap that you could stick on just about anything. All you need are a couple small electronics parts, and a bunch of garbage from around the house (like a soda bottle, soda can, an old tree branch, and some zip ties). You don’t even need to know how to solder, so it’s a great little beginner’s project.

Check out the full instructions at MAKE to see how it’s done.

Make a Waterproof Bike Light from Soda Bottle Caps | MAKE

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