Waterproof rating separates an okay solar disk light for a swimming pool from a great one, and the KINGMAZI is more sufficient to resist wet conditions than any of the other lights we tested. It is ...

The rectangular and disk lights are similar. These are area lights; this means that they do not emit light from one, infinitely small point in space, like the spot or point light. Instead ...

The International Regulations for Preventing Collisions at Sea (COLREGs) not only prescribe the actions of each vessel in all states of visibility, they also stipulate the lights that should be fitted ...

Light sensors are a type of photodetector (also called photosensors) that detect light. Different types of light sensors can be used to measure illuminance, respond to changes in the amount of light ...

The best solar garden lights are a lovely way to brighten up your garden while saving on energy. However, our testing has revealed some brands are more reliable and longer-lasting than others. We've ...

The nights are drawing in again and the commute home will be in the darkness; Simon Bever explains why it's time to take a look at your lights The autumn and winter period in the UK is never the ...

The use of artificial light at night has expanded and intensified over past decades, and recent advances in LED technology have accelerated those trends. Light pollution severely disrupts nocturnal ...

Watch this video which explains how light travels into our eyes so that we can see things. Of course, you can only see something when there's light. And what is light? It's energy that zooms ...

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Artists often use a monochrome palette – black, white and shades of grey – to explore shapes, patterns and composition. Eva Hesse's delicate abstract drawing, Untitled 1967 is made using a ...