Energy-saving lamps: what does the lumen number mean?

You will always find a lumen indication on energy-saving lamps. In this practical tip, we explain exactly what it says.

Lumen number for energy saving lamp, LED and light bulb

• "Lumen" (lumen per watt) is the unit of measurement for luminous flux. This means all the light emitted by energy-saving lamps, light bulbs or LEDs.
• The more lumens a lamp has, the brighter it shines and the more electricity it consumes. LED bulbs and energy-saving lamps achieve higher lumen numbers than light bulbs with lower consumption.
• A classic 40 watt light bulb has 415 lumens. To achieve a comparable brightness with an energy-saving lamp, you need an energy-saving lamp with only 9 watts.
• The (rounded) lumen number can be found next to the wattage on the packaging of the energy-saving lamps (see picture).

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In another practical tip, we will tell you how you can effectively reduce your electricity costs. We'll show you many other tips that can help you save energy here.