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Common problem

When the energy saving lamp is lit, why does the root appear black patches?

Font Size: [Big][Mid][Small] 2015-10-2    Views: 828    

Energy saving lamps in the work of the material is liquid mercury. When the lamp is not lit, the liquid mercury drops on the filament. When a lamp is lit, the liquid mercury is evaporated onto the wall of the glass tube by a sudden heat of the filament. Generally about ten minutes or so, black mercury spots that will be natural evaporation, tube wall recovery white. This is a normal phenomenon in the work of fluorescent lamps.

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