Mr-Skill was very interested to learn that the LED Light revolution began as far back as 1962, when they started out as semiconductors that generated light when electrons reacted in electron holes. Essentially, the interaction releases energy – which we call photons – which in turn create basic light through a process referred to as electroluminescence. Now it is never our intention to get too technical in our articles, so we will attempt to keep things as simple as possible from hereon. If you want more technical data, find an electrical specialist right here on Mr-Skill.
Different LED Colours
The P - N junction of the diode determines which colour the LED light will turn out to be. It could create white, red, green, blue or even amber light. The junction controls the mixing level of positive and negative power. This in turn uses variable energy gaps that we measure in specific wavelengths to identify with the different colours of the spectrum – to the human eye, this translates to visible light.
Do LEDs Save Energy?
Certainly they do, especially when compared to conventional incandescent bulbs, which are renowned for their energy inefficiency. In fact, around 90% of the energy consumed by a traditional bulb converts to heat – hence the scorch marks often visible on a ceiling above an electric light bulb missing its shade! LED lights consume around 75% less power by comparison, and produce 3.4 BTUs per hour as opposed to the 85 BTUs put out by an old-style bulb.
The Proof of the Pudding
The good news is that LED lights draw around 2 to 10 watts of electricity when in use. This equates to around a third to one-thirtieth of the power drawn by a conventional bulb. Add the fact that LED’s last between 35 to 50 times longer than a traditional bulb (and up to 5 times longer than fluorescent tubes) and you should get an electrical quote to change all your lights without further delay. Mr-Skill is a magician rather than a mathematician, but even he can see the enormous power-saving potential across the National Grid in years to come.
One of our regular London electrical experts tells us that LED lights perform at their optimal brightness the moment you switch them on. Very useful for the vehicle, railway and aircraft industries, and that is for sure!