Visit：1067 Date：2019-07-10

First of all, the reason why the LED light fixture still emits shimmer after power-off is caused by the light switch control being zero line (normally specified as the fire line), which accounts for nearly half of the causes of such phenomena! When the lighting switch is controlled by the zero line instead of the fire line, since the LED lamp is always in the charged state, the inductive phenomenon is easily caused between the live line and the ground line, and the induced current is generated, thereby causing the LED lamp to emit a shimmer! In this case, the LED luminaire has the common feature of continuously emitting low light, other LED lamps in the room or at the same time (extension: the fluorescent lamp will have a flicker phenomenon after power failure). As for how to deal with this kind of failure phenomenon, I believe that everyone does not need to know more.

Secondly, with the improvement of living standards, people will purchase lighting switches with indicator/backlight function for the convenience of life and convenience. I don't know why, it is easy to cause the controlled LED luminaire to form a path through the built-in indicator circuit of the switch after the switch is disconnected (equivalent to the LED luminaire and the switch indicating circuit connected to the AC220V). Although the current value in the circuit is small, it can easily cause the LED lamp to emit a shimmer! In view of this, when purchasing a lighting switch with a backlight indication function, you may wish to purchase a non-electric fluorescent type (commonly known as a luminous type). Finally, it is necessary to reveal the reason why the LED lamps are still slightly lighted. Although it is rare in practice, it is very concealed and deceptive. As highlighted above, LED luminaires are a semiconductor product that is extremely sensitive to current. If there are multiple wires for other electrical devices around the LED lamp holder, the induced current generated between the wires will also cause the LED luminaire to break. Glimmering in the electrical state! The easiest and most effective way to deal with this situation is to use the tin foil paper in the cigarette/chewing gum to tightly wrap other wires near the lamp holder, and use the short-circuit shielding method to eliminate this phenomenon.