1, it may be that the zero line of the switch is wrong. Although the zero line is turned off, after the live wire enters the lamp, an AC loop is formed through the distributed capacitance between the remaining zero line segment and the ground, and the high-sensitivity LED lamp still has a glimmer.
2. On the other hand, after the switch turns off the live wire, because both the broken live wire and the energized live wire are in the same tube, which is also a distributed capacitor, the induced voltage of the energized AC live wire is conducted, and the highly sensitive LED lamp will also emit light. In this case, the power consumption is very small, and there is no potential safety hazard.
Extended data:
Matters needing attention
1. Pay attention to electricity when installing, and ensure that LED energy-saving bulbs are installed on the basis of power failure.
2. Traditional downlights should not use LED energy-saving lamps. Because these lamps are small in size and have poor heat dissipation. It is easy to cause the plastic of the lamp holder to yellow and break.
3.LED energy-saving lamps are divided into indoor and outdoor, which are suitable for indoor installation. If installed outdoors, water vapor will enter the led energy-saving lamp. When water vapor condenses, it is easy to cause short circuit and damage LED energy-saving lamps.
4, in the process of use can't switch too frequently. For LED energy-saving lamps, too frequent switching will lead to the premature end of the light source.