From your very first blinking LED to dazzling multi-color sequences, Arduino makes it easy to bring light to life. With just a board, a few LEDs, and some code, you can experiment with patterns, ...

Automate dark and light mode based on your surroundings.

Govee, a leading smart light maker, on Monday launched what could be the most interesting ceiling light we've seen. The Govee ...

I tested the most popular red light therapy devices. These are the ones worth your money.

Researchers from the University of Twente and Harvard University have developed a new way to generate ultraviolet (UV) light ...

Infrared sensors that detect the short-wave infrared (SWIR) region can clearly recognize objects not only during the day and ...

A very cool (also warm!) property of the base-emitter junction of (most) small signal BJTs is the ΔVbe temperature-sensing ...

LED candles are neat, but they’re very suboptimal for wish-making: you can’t blow them out. Unless you take the circuit from ...

ST. PETERSBURG, Fla. — For three nights, 50 blocks of Central Avenue in St. Pete will be illuminated with a rainbow of laser lights. The lights will project off the roof of the Mari Jean Hotel and end ...