Did you know that the lighting in the average home uses around 16% of the total power consumption? This means the lighting in your home holds considerable cost-cutting potential! Replacing your old lamps with a modern alternative is a good start.
In order to help you choosing the right bulb, you will find below a series of handy comparison charts about:
When replacing an incandescent bulb or a halogen lamp, you will now have to choose between a LED or a compact fluorescent light. But what exactly is the difference?
The comparison chart below shows you exactly which energy-saving light bulb or LED lamp you can replace your old incandescent light bulb or halogen lamp with to get the same amount of light (i.e. the power expressed watts).
|Traditional bulb1||Halogen2||Compact fluorescent||LED|
|25 watts||15 watts||6 watts||2 watts|
|40 watts||25 watts||10 watts||5 watts|
|60 watts||40 watts||15 watts||7 watts|
|75 watts||45 watts||18 watts||9 watts|
|100 watts||60 watts||25 watts||12 watts|
(1) off the market since 1 September 2012
(2) gradually phased out from 1 September 2018
The light output of LED lamps continues to increase exponentially year by year. Which is why the comparison chart above merely serves as a guideline. Where a 7-watt LED lamp is currently required to deliver a certain light intensity for instance, in a year from now, this may well have dropped to just 5 watts, and is likely to have dropped even further to just 2 watts in four years’ time.
Looking to replace an old incandescent light bulb and don’t exactly know the equivalent LED lamp? The best way forward is to go by the number of lumens, which is now clearly specified on the packaging.
|100 watts||1.300-1.400 lumens|
|75 watts||920-1060 lumens|
|60 watts||700-810 lumens|
|40 watts||410-470 lumens|
|25 watts||220-250 lumens|
|15 watts*||<150 lumens|
(*) lamps for refrigerators or ovens with very low light intensity
Alongside the light intensity (number of lumens), the colour temperature is another deciding factor when choosing the right LED lamp.
The appropriate colour temperature enables you to choose the ambiance you would like for each room. Colour temperature is expressed in kelvin. The higher the colour temperature, the higher the Kelvin rating and the more blueish the colour. Light sources with a (comparatively) low temperature tend to be more reddish.
To give you some idea, below is a summary table showing the most common light types and their corresponding colour temperature:
|Cool white||5,500 to 6,000 kelvin|
|Neutral white||4,000 to 4,500 kelvin|
|Warm white||2,500 to 3,000 kelvin|
|Yellowish white||+/- 2,200 kelvin|
Find out more about colour temperature
Incandescent light bulbs are no longer an option, with halogen lamps too now on their way out. Which means the duel is now between compact fluorescent lights and LEDs. A quick reminder …
The energy-saving light bulb, also known as the compact fluorescent lamp, is actually a folded fluorescent strip tube lamp that fits inside a regular bulb fitting.
LED lamps are made up of clusters of light-emitting diodes (LEDs). As they are so small, LED lamps come in all shapes and designs.
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