Light bulbs

A high contrast of lights strains our sight. Fluorescents do not consume much more power when they are switched on, but their life cycle is shortened by switching on and off. For our health's sake and for sustainability it is necessary to pay attention to how we use bulbs.

How can we do it

For reading or working we install a powerful light directed to the surface to be seen and a general dim light. We must not have naked bulbs in our field of vision.
Don't leave on lights that you don't need. But if you go out only for a while from a room with a fluorescent (or a low consumption bulb), it's better not to switch off the light.
Attenuation bulbs spend quite a lot more regardless of the intensity to which they are set. It is better to put them off using the switch than using the attenuator.
Hints to spend less power: give lamps and bulbs a dust, paint walls and ceilings in light colours, avoid using indirect lights. To decorate with electricity is luxury; let us avoid ornamental lights aimed only at pictures, plants...
When they blow out, let us take all type of bulbs to a waste collection service.

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Data d'actualització: 25/08/2011 - 13:46

Keep this in mind!

Let's make the most of sunlight, it's the healthiest.

To enjoy a good visual and general health, the quantity of the light is as important as its colour.

Let us use low-consumption light bulbs, except in places where the bulb will not be burning for long, or where it will be turned off immediately, or if we need to see colours much more accurately.

Information sources

Professional organizations: Asociación Española de Fabricantes de Iluminación, European Lamp Companies Federation; Sector companies: Ambilamp, Cofac, Empresa Nacional de Residuos Radiactivos, Joan Ordeix, Laes, Monsó i Benet, Philips, Siemens, Vitri;

Academic centres: Dept. de Psicologia Bàsica, Evolutiva i de l'Educació de la Univ. Autònoma de Barcelona, Institut Clínic d'Oftalmologia de la Univ. de Barcelona; experts: Edu Gálvez, fotògraf;

Government: Comisión Nacional de Energía, Entitat Metropolitana del Medi Ambient, Institut Català d'Energia, Instituto para la Diversificación y el Ahorro de la Energía;

organizations: Associació de Naturalistes de Girona, Cel Fosc, Fundació Terra, Greenpeace, Illuminating Engineering Society of North America, Instituto Sindical de Trabajo, Ambiente y Salud.