"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you've ever assumed that all light bulbs are the same, think again. There's a broad spectrum of light ...

Everyone’s trying to build a better light bulb. These days, that means things like adjustable colors and smart home connectivity — for most companies. Bay Area startup Soraa is skipping all the noise ...

The color temperature of a light, measured in kelvins, is its most noticeable characteristic. A candle, at 1900 K, appears orange. Daylight, at 5500 K, is much whiter and bluer. A 5500-K bulb, however ...

From Issue Five of Gear Patrol Magazine. Discounted domestic shipping + 15% off in the GP store for new subscribers. Before electricity, interiors were illuminated by flame, with candles and gas lamps ...