In the first installment of this two-part series, we showed how to expand the usefulness of a solar day lamp by adding a motion-sensing function and a light sensor that adjusts the LED lamp to take ...

As spring approaches, many of us will begin preparing our outdoor spaces for the warmer months ahead. Whether you’re sprucing up flower beds, upgrading patio furniture or simply creating a cozy ...

Back in 2011, during a TED Talk in Scotland, professor Harald Haas introduced a revolutionary idea to the world: what if a wireless Internet system could run on nothing but an LED lightbulb? Back then ...

Solar panels use a scientific concept called the photovoltaic effect to turn sunlight into electricity. Here's a deep dive into how it all works. You've probably wondered what kind of magic in solar ...