济南发光字遭受过电冲击后的失效形式并非固定，但通常会招致焊接线损坏。
The failure form of Ji 'nan luminous character after being subjected to electric shock is not fixed, but it usually causes welding line damage.
济南发光字自身的失效主要有以下几种状况。
Ji 'nan luminous word failure mainly has the following conditions.
这些损坏可以表现为器件的立刻失效，也可能发作在过电流冲击事情后许久才失效，缩短济南发光字的工作寿命。
These damage can be manifested as the immediate failure of the device, may also occur in the over-current shock after a long time to failure, shorten the working life of Ji'nan luminous word.
济南发光字失效一是来源于电源和驱动的失效，二是来源于LED器件自身的失效。
Ji 'nan luminous word failure comes from the failure of power supply and driver, and the two comes from the failure of LED devices.
济南发光字失效一是来源于电源和驱动的失效，二是来源于LED器件自身的失效。
Ji 'nan luminous word failure comes from the failure of power supply and driver, and the two comes from the failure of LED devices.
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