People commonly use sun lamps, also known as SAD lamps, to treat a form of depression called seasonal affective disorder (SAD). These lamps can also help a person’s body make vitamin D, which helps ...

Solar lights can seem like magic. They turn the light from the sun into usable electricity, making for beautiful garden lighting that's totally free to run. But how do they actually work? I spoke to ...

Bad lighting is easy to spot but surprisingly easy to banish in residential spaces. The days of headache-inducing, too bright or too blue light are fading. Here to stay is light that accurately and ...

Real sunlight is a beautiful thing, but due to the vagaries of Earth’s orbit and local weather systems, it’s not available all the time. [Matt] decided this wasn’t good enough, and set about building ...