Light-emitting diode lighting device with afterglow-proof function

A light-emitting diode (LED) device with afterglow-proof function, comprising:

• a common positive electrode connected to a positive electrode of an external power source;
• a common negative electrode connected to a negative electrode of the external power source;
• a LED lighting module;
• and
• a substrate comprising a conductive layer connected to a grounding point, an isolating medium layer, a plurality of first metal layers connected to the common positive electrode and a plurality of second metal layers connected to the negative electrode, wherein the isolating medium layer is disposed on the conductive layer, and the first metal layers and the second metal layers are disposed on the isolating medium layer;
• wherein the LED lighting module comprises a plurality of LED lighting units connected to each other in series, and each of the LED lighting units is corresponding to one of the first metal layers and one of the second metal layers, wherein each of the LED lighting units comprises a light source and a capacitor connected to each other in parallel, and a positive electrode pin and a negative electrode pin of the light source are respectively connected to the first metal layer and the second metal layer corresponding thereto, and one end of the capacitor is connected to the first metal layer corresponding thereto and another end of the capacitor is connected to the second metal layer corresponding thereto.