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Light bulb socket & base explained
Learn all you need to know in our light bulbs buying guide.
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T5 fluorescent tubes - efficient lighting for home and professional applications
The light from a T5 fluorescent tube is characterised by a clear, uniform and pleasant radiance. In kitchens, offices or workshops, it provides reliable brightness, while in living spaces it is a discreet and unobtrusive source of light. With their slim design and wide selection of lengths and light colours, T5 tube bulbs have been among the most popular bulbs for many years. They combine proven technology with versatile application options and are ideal for use in both private homes and professional environments.
Different lengths and formats of T5 fluorescent tubes
A T5 fluorescent tube is characterised by its particularly slim diameter of just 16 millimetres. This filigree shape enables installation in discreet lights as well as in large-scale lighting systems. The tube bulbs are available in different lengths, typically 55, 115 or 145 centimetres, and with different wattages. This means that a suitable variant can be found for almost any room.
The compact design not only offers design advantages, but also enables uniform light distribution. In combination with the right ballast, T5 tube bulbs are reliable and long-lasting. The standardised dimensions make it easy to combine with a matching light. Whether as the main lighting in the study, as a discreet addition in the living room or as a large-scale solution in an office building: the different lengths offer a well thought-out solution for every application.
The light colour also plays an important role. T5 tube bulbs are available in a range of colour temperatures, from warm white through cool white to daylight white. Warm white creates a cosy atmosphere, cool white appears matter-of-fact and clear, while daylight white creates an activating effect. This allows the lighting to be customised to the requirements of the room.
T5 tube bulb with G5 socket - proven technology for many applications
A central feature of the T5 lamp is the standardised G5 socket. This standardised base type ensures a secure connection between the tube bulb and light and makes it easy to replace. Thanks to their clear assignment to the G5 base, T5 bulbs can be used specifically in bulbs intended for this purpose. This creates planning security when making a selection and facilitates the replacement of existing lighting solutions. Whether for private or commercial use. T5 bulbs provide a reliable basis for modern lighting concepts that focus on efficiency and uniform light.
In the kitchen, a T5 tube bulb with a G5 base provides uniform working light to facilitate cutting, cooking and preparation. In corridors or stairwells, it impresses with bright ambient lighting that creates a sense of security. In offices, conference rooms or workshops, T5 tube bulbs with G5 sockets are appreciated as they provide efficient lighting with reliable colour rendering.
However, the possible applications go far beyond the private sector. In shop windows they showcase products, in sales areas they support uniform illumination and in the catering trade they contribute to a pleasant atmosphere. T5 fluorescent bulbs also prove their worth in basements, garages or storage rooms thanks to their reliability. For those who value a long-lasting and easily replaceable solution, the combination of T5 tube bulb and G5 socket is a proven technology that has been appreciated in many areas for years.
Switch to G5 LED - modern alternative to classic fluorescent tubes
While T5 fluorescent tubes have been a standard in lighting for decades, more and more users are now opting to convert to T5 G5 LED bulbs. These modern bulbs combine the familiar design with the advantages of LED technology.
The most important difference can be seen in the energy consumption: a G5 LED works with significantly fewer watts, but achieves the same or even a higher light output than a classic T5 tube bulb. This reduces electricity costs considerably. Another advantage is the longer service life. While T5 tube bulbs are already designed for many thousands of operating hours, the LED version often exceeds these values significantly.
There are also other advantages: G5 LED tube bulbs are mercury-free and therefore not only more environmentally friendly, but also safer in everyday use. Even in utility areas such as laundry basements, workshops or storage rooms, there is no need to worry about harmful substances escaping if a tube bulb is damaged. They generate less heat and switch on immediately - without flickering and without delay. In living rooms or bedrooms, this provides comfortable light, while in offices, sales rooms or workshops it is a low-maintenance and economical solution.
The changeover is simple. As G5 LED lights are available in the same design as classic T5 fluorescent tubes, they can be used directly in many lights. The result is a future-orientated alternative that allows existing systems to continue to be used and at the same time offers modern efficiency.
Light colours and effect of the T5 lamp
The effect of light is largely determined by the colour temperature. A T5 fluorescent tube is available in different light colours, each of which creates its own atmosphere:
Warm white (approx. < 3,300 K): Creates a cosy ambience, ideal for living rooms and bedrooms.
Cool white (approx. 3,300 to 5,300 K): Supports clear and functional lighting, practical for the kitchen, hallway or bathroom.
Daylight (approx. > 5,300 K): has an activating effect on the biorhythm and provides natural brightness, ideal for workrooms, offices or workshops.
Thanks to this range, rooms can be designed specifically according to function and atmosphere. While warm white light conveys cosiness, daylight white light ensures activity and alertness. In sales rooms or shop windows, the right light colours can also improve the presentation of products. In schools, surgeries or production facilities, the right light colour helps to promote concentration and increase well-being.
Energy efficiency and longevity of T5 bulbs
A decisive advantage of the T5 fluorescent bulb is its long service life. Many models achieve up to 20,000 operating hours, which means that replacement is rarely necessary. This durability makes them a reliable solution for areas where light is required on a permanent basis.
The energy efficiency is also impressive. T5 tube bulbs convert most of the energy used into light and achieve high light output values - often several thousand lumens with comparatively low power. Depending on the model and manufacturer, different efficiency classes are available, allowing a targeted selection according to economic criteria.
For users, this means less maintenance, lower electricity costs and a sustainable lighting solution. The efficiency is particularly noticeable in offices, schools or commercial premises. But even in private homes, a T5 fluorescent tube helps to reduce energy consumption without sacrificing a pleasant quality of light.
Special features and brand diversity
In addition to the standard variants, there are also special versions of the T5 fluorescent tube. Some models are dimmable, allowing them to be flexibly adapted to the respective room situation. Other variants have special coatings that enable uniform light distribution or optimised colour rendering.
Well-known manufacturers such as Philips (TL5) or OSRAM (Lumilux) offer a wide range of T5 bulbs that are characterised by quality, reliability and efficiency. These branded products are available in different wattages, light colours and lengths and can be integrated into almost any lighting system.
The strike-through prices correspond to the manufacturer's RRP.
Included in the price of LED lights/bulbs is a contribution to recycling costs of €0.05. Included in the price of CFLs/fluorescent bulbs is a contribution to recycling costs of €0.15.
All prices include 23% VAT, delivery costs excluded.