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This International Standard defines a measurement method of the power losses of magnetic transformer and the power losses with the standby power of electronic convertor for halogen lamps and LED modules. The load for the test measurement method of magnetic transformer and electronic convertor is specified at the rated supply current with substitution load resistor. Also a calculation method of the efficiency for the mentioned controlgear for halogen lamps and LED modules is defined. This International Standard applies to electrical controlgear - lamp circuits comprised solely of the controlgear and of the lamp(s). NOTE 1: Requirements for testing individual controlgear during production are not included. NOTE 2: For multipurpose power supplies only the lighting part may be considered. It specifies the measurement method for the total input power, the standby power and the calculation method of the controlgear efficiency for all controlgear sold for domestic and normal commercial purposes operating with halogen lamps and LED modules. This International Standard does not apply to: - controlgear which form an integral part of lamps; - controlgear circuits with capacitors connected in series; - controllable wire-wound magnetic controlgear;