The tester is additionally connected with a filament switching indicator and a pair of direct current output poles for testing the condition of the filament of a fluorescent lamp.
本检测器还附加接有灯丝通断指示器和一对直流输出极，作为检测荧光灯灯丝情况用。
The tester is additionally connected with a filament switching indicator and a pair of direct current output poles for testing the condition of the filament of a fluorescent lamp.
本检测器还附加接有灯丝通断指示器和一对直流输出极，作为检测荧光灯灯丝情况用。
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