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| The table below gives the estimated sales data for all types of lamps for the Western European market place. These data are used to calculate the annual amount of materials and substances put on this market and the associated annual energy consumption. | ||||||||||||||||||||
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¹: Typical data are selected from a wide range in lifetime and power offered to the market within the product group. The data calculated therefore should be considered as indicative values. 2: TWh/yr = 109 kWh/yr  |
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| The pie charts show that, although GLS lamps make up only a minor share of the light generated annually, they are the biggest part in terms of annual sales. Most light is generated by fluorescent lamps and HID. | ||||||||||||||||||||
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