After the light is turned off, there is residual light, first of all, we must eliminate the human factor, the so-called human factor, is to check whether the switch controls the live wire. LED lamps are very sensitive to slight current, the use of dual-control switch of the ED lamp, after turning off the light has a greater chance of residual light, the reason is that the power line of the lamp and the contact line of the dual control switch are the same tube. In particular, the power supply of the lamp and the contact wire of the dual-control switch are in the same pipe as the power cord of the socket, and the slight induced current generated by being entangled together.
The normally closed contacts of the dual-control switch flow to the LED lamp, causing a faint brightness.
Secondly, it is necessary to distinguish whether it is an LED lamp or an LED light source. There is still a difference between the two. If the lamp uses an LED light source, the most direct and effective way is to replace the light source.
For the LED lamp, (the LED lamp produced by the regular manufacturer, as long as the switch is controlled on the fire line, there is very little light after the light is turned off.
LED lights, turn off the lights at night and there is residual light, how to solve it?
Of course, it is necessary to exclude the lamps produced by regular manufacturers, and use substandard LED light sources without permission. Regardless of whether the LED lamp is used for single control or dual control, there must be certain suitable conditions to solve it. Generally speaking, the most effective way to solve the problem is to add a small intermediate relay at the front end of the lamp source to control the live wire while cutting off the zero line of the lamp.
Anonymous users2024-02-06