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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