D7BCT datasheet(44/54 Pages) OSRAM

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OSRAM DULUX® EL – electronic energy saving lamps

Economical alternatives to ordinary light bulbs

Technical Guide

3.7 Lamp life

The life of fluorescent lamps is determined essentially by the consumption of the emit-

ter on the lamp cathodes. The average life of OSRAM DULUX® EL LONGLIFE lamps is

15000 hours; that of OSRAM DULUX® EL ECONOMY lamps is 8000 hours. Half of any

number of lamps may fail up to this time (50 % mortality).

Mortality curve for OSRAM DULUX® LONGLIFE 7, 11, 15, 20 and 23 W

Mortality curve for OSRAM DULUX® ECONOMY 8, 12, 16, 21 and 24 W

Fig. 16:

Typical mortality curve for OSRAM DULUX® EL LONGLIFE

and ECONOMY lamps

3. Lamp data and lamp properties

100

3000

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15000

18000

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4000 5000

7000 8000

10000 11000

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16000 17000

100

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18000

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7000 8000

10000 11000

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16000 17000

Operating hours (h)

D7BCT 데이터시트(PDF) 44 Page - OSRAM GmbH

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