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What really is efficient lighting? Stefan Fassbinder Deutsches Kupferinstitut Am Bonneshof 5 D-40474 Düsseldorf Tel.: +49 211 4796-323 Fax: +49 211 4796-310.

What really is efficient lighting? Stefan Fassbinder Deutsches Kupferinstitut Am Bonneshof 5 D-40474 Düsseldorf Tel.: +49 211 4796-323 Fax: +49 211 4796-310.

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What really is efficient lighting?

What really is efficient lighting?

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