Lumen, Kelvin& Co: What Is Actually on the Lamps Packaging?

Certainly, some was easier, when you could still safely access on the shelf and grab any bulb with the desired wattage. For the selection of light sources is large now, with the third stage of the ErP directive , also the 60-Watt incandescents disappear. Even very large-and if you correct it, then can also neatly saved be. Because current energy-saving lamps light up already with a lot less Watts according to bright or brighter than the old incandescent bulbs.

Therefore, light output in lumens (brightness) is now instead of the Watt-to find crucial for guidance when purchasing a lamp and on any packaging specification. In addition, the various light sources in their brightness at same energy effort differ. For example, a LED lamp 60 Watt has a luminous efficiency of rich 806 lumens while a halogen lamp also 60 watts on just 702 lumen according to shopareview. The energy saving lamp or even compact fluorescent lamp in between and provides performance of 741 lumens at 60 watts.

Philips packaging, the wattage of a light bulb with comparable brightness accordingly find beside the lumen giving, the energy consumption of the lamp in Watts and a direct comparison.

The light color is specified in degrees Kelvin . The higher the number, the colder the light. As a guide you can assume 4500 K neutral white light, 2700 K for significantly warm white light. And the value of 6500 K stands for daylight white.

The packaging contains a further note regarding socket type. A symbol indicates also thedimming, because although all halogen lamps dimmable but not all LEDs and CFLs are.

The notice of energy efficiency class to give an indication of the savings potential of the respective pear. Class A saves the most, namely between 80 and 90 per cent of energy consumption of a light performance comparable conventional light bulb. But you know that yes even longer.

Two more packaging notes are quite interesting. One is the so-called switching resistance . Like that one or others seem completely unimportant – but a quite noticeable difference do. Because there are places in home and apartment, rather long and continuously illuminated, and other rooms where only briefly the light- and then is switched off now. Think about the toilet or storeroom. Given that light means buying, still get some savings potential is also here.

And last but not least is the startup behavior of the lamp pointed out, being basically halogen and LED bulbs are Sofortstarter (“instant”), some time will need some energy saving light bulbs but to get on tour. This on TRIPS agreement lasts only up to 30 seconds, the light bulb has, after all, still the “rapid start” sign deserves.

It so isn’t enormous choosing the right lamp for the respective Beleuchtungsort so hard–on the contrary, the new notes make it easier.

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