'I've never seen a light like this before. That is wild,' YouTuber Mathew Perks said.

If you happen to be in the market for a small artificial sun, you may be interested to know that for about $1300, you can get a tennis-ball-sized LED array that outputs 120,000 lumens.

EPFL researchers have developed a light-based method that can produce proteins that switch states, respond to signals, and even compute, using light and the cell cycle.

Scientists used light to evolve proteins that can switch, sense, and even “compute” inside living cells. Evolution is one of ...

After 16 weeks of testing, we noticed visible results. Here are our favorite red light therapy devices for hair growth.

At first glance, it may look like [Rybitski]’s 7-segment RGB LED clock is something that’s been done before, but look past the beautiful mounting. It’s not just stylishly framed; ...

One of the problems with being a graffiti artist is that you have to carry around a different spray can for each color you intend to use. [Sandesh Manik] decided to solve this problem by building ...

A resistor in the cloud is worth two in the hand.

This library is designed for Arduino, ESP32, ESP8266... to control LED: on, off, toggle, fade in/out, blink, blink the number of times, blink in a period of time. It is designed for not only beginners ...