How Do LED Lightbulbs Work?

The technology behind LED lightbulbs is different to any other lightbulb, and was so revolutionary that the scientists behind this invention won the Nobel prize for physics in 2014. Here’s some insight into the science and technology behind these bulbs from our lighting specialists, who are accredited under the Victorian energy upgrades program to install free LED upgrades. 

LED Technology 

LED (Light Emitting Diode) lightbulbs are what is commonly called solid-state lighting technology (SSL). This means that they work on a piece of solid matter called a semi-conductor. Unlike incandescent bulbs, which require a filament or fluorescent lightbulbs that need a gas, illumination in LED lightbulbs is the result of electrons moving in the semi-conductor material. As a result, they use very little electricity, don’t get hot and last as long as a standard transistor, as there is no filament to burn out. 

Unlike incandescent or fluorescent lighting, LEDs do not radiate light outwards in all directions. Instead, they emit light in a very narrow cone of just a few degrees. That’s what makes them so perfect for use in screens. This is less ideal for home lighting, however, as you want a nice, even spread of light throughout the space. This is where the design of the LED lightbulbs is important. Manufacturers assemble the lightbulbs in such a way as to ensure the light from the LED is bounced of an optimal number of angles to deliver the multidirectional light we need in our homes and offices. 

This is one of the reasons it is so important to buy good quality LED lightbulb, where the bulb has been professionally designed to optimise the spread of light from the diode. Too narrow, and you’ll get an individual beam coming from the bulb; too wide and light will be reflected back into the semi-conductor rather than out into the room. 

There is one other important difference between LED technology and traditional lighting technology, and that is the type of current it uses. LED lightbulbs work on DC power, not AC power like the rest of our home. For this reason, these bulbs include a small LED driver that converts the AC power supplied to your light fixture into DC power that the bulb can use. This additional technology is one of the reasons why LED lightbulbs are more expensive than other bulbs. However, free LED upgrades are making this project as affordable as possible. 

Make Switching to LEDs Affordable with a Free LED Upgrade Through the Victorian Energy Upgrades Program 

Thanks to the free LED upgrades available through the Victorian energy upgrades program, it’s easy and affordable to install this energy saving technology in your home. The In2Energy team is fully accredited through the scheme, and are licensed and ensured contractors, ensuring a smooth and rewarding upgrade experience. Contact us today to find out more about the benefits of LEDs or how to get your upgrade through the Victorian energy upgrades program. 


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