Tungesten filament general service eletric lamps (upto 100 W) - IS 418
Lamps must be designed in such a way that their performance is reliable in normal and accepted use. In general, this can be accomplished by meeting the requirements of the standard. Lamps must be tested according to the test procedure. Lamps must meet the dimensional requirements specified on the relevant lamp datasheet. Lamps with E27 caps must meet the gauge for testing contact-making specified in datasheet 7006-50. Individual lamp lumen maintenance at 75% of rated life shall not be less than the minimum value specified on the relevant lamp datasheet.
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