求翻译：当发现灯具工作异常（自熄，闪烁）时，请检查灯座与灯头的接触性能以及电源电压是否正常，如果正常，故障仍未排除，需调换新灯具是什么意思？

Performance as well as the supply voltage of lamp holder and lamp holder contacts when abnormal lighting work (self-extinguishing, flashing), check whether it is normal, if normal fault has not ruled out the need to exchange new lamps

When you find lamps work exception (self-extinguishing, flashing), please check the lights and light head contact performance, as well as the power supply voltage is normal, if the normal, the fault is still has not ruled out, and to exchange new lamps

When discovery lamps and lanterns work exceptionally (from extinguishes, when twinkle), please inspect the lamp holder and the lamp holder contact performance as well as the supply voltage is whether normal, if normal, the breakdown has still not removed, must exchange the new lamps and lanterns

When lamps are found not working properly (self-extinguishing, Flash), please check the lamp holder and lamp performance and power supply voltage is normal, if the normal fault has not ruled out, need to change the new lamp

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