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D7BCT bảng dữ liệu(PDF) 27 Page - OSRAM GmbH |
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D7BCT bảng dữ liệu(HTML) 27 Page - OSRAM GmbH |
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27 / 54 page ![]() 2. Function and technical design 26 OSRAM DULUX® EL – electronic energy saving lamps Economical alternatives to ordinary light bulbs Technical Guide 2.2.2 Energy savings thanks to electronic control gear Compared with fluorescent lamps with conventional control gear, there are further energy savings of around 20 % with electronic control gear. This is due essentially to two effects: • The losses with electronic control gear are only about one third of the losses with conventional control gear. • The luminous efficacy of a fluorescent lamp shows a significant improvement of around 20 % at high frequencies, with saturation setting it at around 50 kHz. Fig. 4: Luminous efficacy of a fluorescent lamp as a function of the operating frequency 10 10 2 10 3 10 4 10 5 Hz 100 105 110 % Frequenz f Frequency |
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