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LED Lighting

Lighting represents, on average, 14% of the electricity consumption in your home, also contributing to the heating of the space (for example halogen spotlights).


Contrary to common sense, turning off light points indiscriminately is not a measure of energy efficiency in lighting. On the contrary, energy efficiency in lighting consists of ensuring the same levels of luminosity with equipment that has lower energy consumption.

The lighting paradigm has been changing over the last decade, from the phase-out of incandescent lighting to the promotion of compact flourescent lamps and, more recently, to the massification of LED lighting.

LED lighting is currently the most efficient technology and has high levels of durability. Like televisions, the life span of this equipment is measured in hours of operation, considering a use of 3 hours daily, verifying that an LED lamp (25,000h) can last up to 22 years. This type of lighting combines the mentioned advantages, the fact that it has a smaller contribution to the heating of the space and the possibility to change (in some cases, through a control system) the color temperature of the lighting.

Lâmpada incandescente

Uma lâmpada de 60W em funcionamento 3 horas por dia ao longo de todo ano, representa um custo anual de 12€.

Lâmpada LED

Para uma utilização semelhante, uma lâmpada LED de classe A+ de 8,6 W representa um custo anual de 1,2€ com um custo de 2€.


Ao substituir a iluminação incandescente por LED poderá obter reduções anuais nos consumos de energia na ordem dos 10€ por lâmpada.

Other tips
  1. Whenever possible, use natural light;
  2. Opt for light colors on the walls and ceilings. It will make better use of natural lighting and may reduce artificial lighting;
  3. Do not leave lights on in rooms that are not being used,
  4. Adapt the lighting to your needs and give preference to the one that is located – in addition to saving, you will achieve more comfortable environments;
  5. In halls, garages or common areas, place presence / motion sensors so that the lights turn on and off automatically;
  6. In outdoor lighting, whenever possible, opt for solar lighting.
Energy Label

Lamps and luminaires sold with built-in lamps, or accompanied by lamps, must bear the energy label (Delegated Regulation (EU) No. 874/201).

This requirement applies to directional lamps or not, whether filament, fluorescent, high intensity discharge, LED (Light Emitting Diode: light emitting diode) or LED modules.

In addition to the energy efficiency class (function of the relationship between the lamp power and its useful luminous flux), the label shows the associated energy consumption of 1000 operating hours, which corresponds to 1 year of operation, considering that it is lit during about 3h / day.

How to read the energy label:

  1. Supplier name or trademark and model
  2. Supplier model
  3. Energy efficiency class
  4. Energy consumption weighted in kWh per 1000 hours
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