This resource provides clear explanations of how switching regulators work and how voltage boosting is achieved efficiently ...

This is an automatic emergency lamp with day light sensing, means it senses darkness/night and turns ON automatically. Similarly it senses day light and turns OFF automatically. A simple emergency ...

A solar day lamp is a simple, inexpensive device for bringing “daylight” to dark interior spaces whenever the sun is shining. This article provides complete instructions for designing lamps using both ...

Used to be, our daily rhythms were determined by the sun: We arose at sunrise and went to bed at sunset. But now that we spend the vast majority of our days inside–by some estimates, as much of 90% of ...

Tyler Hayes is a product reviewer for Newsweek. He has contributed extensively to WIRED, The New York Times, Fast Company, and others since 2013. He is obsessed with both music and technology, ...

LEDs may be garnering the most headlines these days. But high-intensity discharge (HID) lighting is as popular as ever, too, thanks to its high brightness, excellent color temperature, high ...

These light up paper circuit cards were much easier to make than I expected and only need a few inexpensive materials. They're a great way to learn about ...

The creative new approach could lead to more energy-efficient machine-learning hardware. On a table in his lab at the University of Pennsylvania, physicist Sam Dillavou has connected an array of ...