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CFL Bulbs

CFL bulbs, also known as energy-saving light bulbs, are energy-efficient light sources. The wide range of sockets, from E14 to 2-pins, makes the usage of CFL bulbs easy. CFL Bulbs are available in various color temperatures such as Extra Warm White (2700K), Warm White (3000K), Cool White (4000K), and even Daylight (6500K). Very popular are the Philips-PL, Osram Dulux, and Sylvania Lynx CFL series. Do you also know that there is an even more energy-efficient light technology? With LED energy-saving lamps you’re able to save up to 70 percent in energy costs compared to conventional energy-saving bulbs. Above all, the LED CFL version lasts up to 5 times longer, so you can save a lot more. Are you willing to save more? Check out our LED CFL! Any-Lamp is your trusted supplier of top-quality brands such as Philips, Noxion and Osram. Remember to check your current socket, color code, and lumen before buying a new energy-saving light bulb.

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What are CFL bulbs?


Energy saving lamps example
Before LED technology, CFL bulbs used to be the most energy-efficiënt lighting source
(Bild: Pixabay/suvajit)

Energy-saving bulbs are light sources that produce light by means of a gas charge in a glass tube. They are also called compact fluorescent lamps (CFL), referring to their space-saving design. Before modern LED lamps, CFL bulbs were the most common alternative to incandescent lamps and fluorescent tubes because they required less power (watts) and thus had a positive impact on electricity bills. In the meantime, however, CFL lamps have been replaced by efficient LEDs. These are available in the same sockets of the conventional compact fluorescent lamps.

One of the most famous features of the energy-saving lamp is the mercury vapour with which the tube of the bulb is filled. This is harmful to health and the environment - but only if it escapes from the lamp. Modern CFL bulbs come with a mercury alloy that poses less of a health risk if the lamp breaks. If you want to dispose of CFL bulbs, there are a few things you need to consider. You can find out more about this in another chapter.

A major disadvantage of CFL lamps is the long preheating phase during which they do not emit 100% of the luminous flux. This is between one and four minutes and thus makes the lamps unattractive for short lighting periods. The colour rendering of an energy-saving lamp is also generally not the best: many of the products range between 80 and 85 Ra and thus render colours well, but not completely naturally. For comparison: under sunlight, the colour rendering reaches the maximum value of 100 Ra and thus reproduces colours absolutely naturally.


The lifespan of most CFL bulbs is nevertheless quite respectable: Some products last up to 20,000 hours. This corresponds to about 6 years of operation at 60 hours per week.


What is the difference between CFL bulbs and LED CFL bulbs?


LED lamps are superior to energy-saving bulbs in all aspects. What's more, you can find the right LED replacement for any of your old CFL bulbs.

The biggest advantage: LEDs are bright immediately and do not require a warm-up time of up to four minutes, like some CFL lamps. This means you can also use the modern LEDs for a short lighting period. In addition, LED CFL bulbs are much more efficient than ordinary CLF lamps. So you can save up to 70 % of your energy costs.

In terms of service life, LED CFL bulbs are also ahead. They shine for up to 100,000 hours, which corresponds to a period of 32 years - assuming a lighting period of 60h/week.

LEDs are also superior to CFL bulbs in terms of colour rendering and colour temperature selection. Many of the products achieve an Ra of 90-99 and thus reproduce colours almost as authentically as sunlight - you cannot feel the difference with the naked eye. Moreover, they are available in the common light colours extra warm white (2,700 K), warm white (3,000 K), cool white (4,000 K) and daylight white (over 6,500 K). Some LEDs even have an RGB function that allows them to make the lamp shine in a very specific colour tone. In addition, modern LEDs also offer smart lighting solutions that allow you to control your lighting via app or voice command. These can be found in our category: Smart LED.

You can find more information on this topic in our blog entry:  If you would like to browse our range right now, click here to go to LED CFL bulbs .


Which sockets are available for CFL bulbs?


CFL bulbs come with different bases - so they are suitable for many sockets. The most common sockets are:

  • 2G11 (4-pins)
  • G23 (2-pins)
  • 2G7 (4-pins)
  • GR10q (4-pins)
  • E27
  • E14

If you are looking for a specific socket, you can use our filter function on the left. To do this, simply click on the designation you want to filter by under "Sockets". You will then only be shown products that match what you are looking for.



Are CFL bulbs dimmable?


Unlike fluorescent tubes, there are many CFL bulbs that can dim them without any problem. However, this is only possible with a phase-angle dimmer. If you have such a dimmer installed, you can take a look at our category Dimmable CFL bulbs. Of course, you can always use our filter function on the left. To do this, simply tick the "Yes" box under "Dimmable"



Disposing of CFL bulbs properly


Zerbrochene Energiesparlampe
Energy-saving light bulbs contain toxic ingredients!
(Image: iStock/izzzy71)

Disposing of CFL lightbulbs is not something you should take lightly: They carry toxic mercury gas. Old CFL bulbs that are intact - i.e. have no cracks - must be taken to a recycling centre. The harmful components are a serious danger to the environment and therefore do not belong in household waste!

If one of your energy-saving bulb breaks, you must ventilate and evacuate the room immediately. Then pick up all the parts of the lamp with rubber gloves and put them in an airtight container. You can now take this to a recycling centre. You should not use a hoover during this process: The exhaust air from the appliance can spread the mercury vapours further into the room. If any remnants of the energy-saving lamp have settled in a carpet, you should remove them with adhesive tape.

By the way, LED CFl bulbs should not be disposed of in household waste either. Although they do not contain any toxic substances, they do contain electronic components that can be recycled. This means that old LEDs also belong at the recycling centre. There they can be recycled.


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