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Get an eye-full of these crazy light paintings.The coloured lines in these images are actually the light trails left behind by Roombas fitted with coloured LED lights.The craze appears to have started with a group of German photographers at the Braunschweig University of Technology who, thanks to a stroke of genius, or just out of boredom (who knows!), decided to attach coloured LED lights to seve …

What is a beam angle? The term beam angle refers to the angle at which light is emitted from a source. Beam angles are typically measured in degrees, but you will also find that some retailers give their bulbs specific designations, such as "narrow spot" or "wide flood". Spotlights versus Floodlights When shopping for LED bulbs you will come across two key terms; "spotlights" and "fl …

If you’re thinking of replacing your old, traditional light bulbs with some bang-up-to-date, energy-efficient LED light bulbs, you’re going to need to know that you’re buying the right bulbs for your particular light fittings. The part of a light bulb that connects to the light fitting is commonly known as the "cap" or "fitting". This provides the electrical connection and a secure fi …

We like to bring you the most up-to-date news from the wonderful, vibrant world of LED Lighting, so here’s the first of our weekly roundups, giving you the lowdown on everything that’s going on.I Could've Been A Contender!Creator of the LED, Nick Holonyak Jr., features in the number one spot on the BBC's list of 10 Inventors Who Didn’t Get Mega-Rich From Their Inventions.Holonyak said, "It's ridic …