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Fluorescent light bulbs


High-quality fluorescent lights

The operating principle of fluorescent lights is that light is produced when electrically charged gas hits a phosphor coating on the inner walls of the light tube. High luminosity and efficiency, as well as durability and low power consumption are among the advantages of fluorescent light tubes. They are primarily used to achieve basic, bright illumination of large areas. Many compact and efficient fluorescent lights come in a tubular shape, and are marketed under the same name as energy-saving lights.

Fluorescent lights for commercial and residential use

Fluorescent lights have been a production-ready lamp since the 1930s. The classic application of this general bright light is more for functional premises, such as offices, warehouses, garages, and hobby workshops. Sales rooms and classrooms are also often illuminated by fluorescent tubes. But fluorescent lights are also used in homely contexts, for example as pendant lights over the dining table and other high performance uplighters for an evenly bright, indirect light. With regards to the light colour, the spectrum ranges from warm white to daylight white.

Function and shape of fluorescent lights

Gas discharge lights (fluorescent lights) require a starter and ballast to manage the voltage and prevent a burn out. The simplified operating principles: The starter generates high ignition voltage which causes the gas inside to become ionized, and thus electrically conductive. Frequently this is a mixture of mercury vapour and an inert gas. The electrically charged gas reacts with the phosphor and excites it so that a visible light is emitted. The ballast is necessary to regulate the current flow.

Common variants include T4, T5, and T8 fluorescent lights. The reference numbers refer to the diameter of the tube: T4 corresponds to 13mm, T5 is 16mm, and T8 is 26mm in diameter. The thicker T8 fluorescent lights are obsolete in many places and are replaced by smaller models, such as the T5 fluorescent light. In addition to these elongated fluorescent tubes, there are many other types in ring and pretzel shapes. Also compact fluorescent lights (CFLs) also come in many forms, such as in the classic E14 or E27 size. These energy-saving lights can also replace defective incandescent bulbs.

Fluorescent lamps in practice

The range of models is very large. Crucial differences are mainly in the composition of the gas mixture and the interior operating pressure. Accordingly, there are numerous subcategories like low and high pressure lamps; and the operating pressure affects the amount of ultraviolet light, among other things. The majority of commercially available models are mercury vapour lights. Because the gas filling is toxic, they cannot be disposed of with the normal household waste. Check your local recycling organisation for proper disposal regulations. For dimming lights, you should always follow the instructions on the package.

The Illumination.co.uk online shop

At Illumination.co.uk, you can find the right lighting equipment for home and office in all styles. We also offer all kinds of outdoor lighting. Notwithstanding the many positive qualities of fluorescent lights, they will hardly match the same pace as LED bulbs as a light source for the future. Whether indoors or outdoors, our range also includes LED light bulbs - the latest generation of lights from market leaders like Philips, Osram and EGLO. At Illumination.co.uk there is plenty of choice, a nice overview of products, and fast shipping – take advantage of our wide product range. And don't forget about free shipping on all orders over £80 to any address in the UK! For any other concerns, our experienced team of lighting experts can help you find the right answer either by phone or email.