Lighting small knowledge | why fluorescent tube will be black? - China lighting network
2020-12-03
ALLTOP
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Fluorescent tube filled with mercury, as the extension of tubes work time, due to the evaporation of mercury after the formation of the speckle effect, can produce slight darkening the whole length along the tube, it is a normal phenomenon. Tube on both ends of the electron powder on the electrode in the process of light lights up and the result of the sputtering and evaporation, gradually appear large diffuse shading, near the ends of the tube that is our common black circle. In addition, the poor quality of the starter, not bright or lead to frequent blinking the tubes, will also accelerate tubes. When shading serious, show that lamp life coming to an end. YanZhiXiang
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