First, the switch controls the neutral line, which is a more common reason, the switch controls the neutral line when the electrician wires, or the zero fire connection when the electric box enters the line. The switch controls the neutral line, and the fire line is still connected to the lamp, and it will emit a dim light.
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Solution: Adjust the wiring so that the switch controls the fire line.
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There are several kinds of wiring methods for the double-control switch, if the wrong connection is used, the light will be slightly lit after the light is turned off.
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Solution: Install the normal control fire wire connection method to reconnect.
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Third, the switch with an indicator light, with an electronic switch inside the switch with an indicator light, there will be a slight current flowing after the light is turned off.
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If the lamp uses an electronic switch, such as infrared, voice control, remote control switch. There can also be a flicker of light after the lights are turned off.
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Solution 1: Change the switch.
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Solution 2: Parallel 500K resistors in the lamp inlet line. However, this method has high technical requirements and is not easy for non-professionals to operate. And it is not effective for the neutral line charging, or the shimmer caused by the patch leakage.
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Fourth, non-isolated drive, light source patch and substrate leakage
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Many lamps are driven by poor resistance and capacitance step-down for cost considerations, or the quality of the light source patch is poor, and there is leakage of the patch and substrate. Substrate copper coating and substrate capacitance effect can also cause light leakage. This is why some lights in a room are bright and some are not.
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Solution: Change 100% lighting lamps, are isolated drive power.
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Five, the neutral line is live
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In fact, the zero line is the most fundamental reason for the light after switching off. If the switch controls the fire line, uses an ordinary wall switch, or emits light, that is, the neutral line is charged. Zero line electrification is a common phenomenon. If the neutral line is not well grounded, the transformer three-phase load is unbalanced, the line is too long, the line diameter is thin, or the neutral line current is too large, it will cause the neutral line to be charged.
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Solution: re-ground the neutral line or carry out low-voltage transformation.
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6. Lamp protector
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Finally, a simple and effective solution is recommended, which is the use of lamp protectors, which can completely solve various reasons for dim light. Connect the protector to the inside of the lamp. After turning off the lamp, the lamp will be disconnected from the mains. Even if the neutral line is charged, the patch leaks, and the switch is connected incorrectly, there will be no current conduction to the lamp.
1, online purchase LED chips and drivers
The circular LED modification board is generally integrated with the LED driver, the LED light strip and the LED driver are separate, be sure to buy a semicircular lens with the LED chip, this light is softer and the brightness is better.
2. Remove the LED chip and driver on the bad lamp
After the LED chip and driver arrive, close the circuit main brake, and then use a Phillips screwdriver to fix the LED chip and LED driver screw off, but do not fix the lamp chassis screw off.
3. Install magnets on the LED transformation board bought back
To buy back the LED transformation board is installed with magnets, if the purchase is installed, then save yourself and install, and then put the LED transformation board to the light chassis, the two wires on the transformation board are connected to the mains zero fire line, the two wires are connected casually, do not meet together.
If the LED driver and the LED chip are separate, the LED driver is a terminal port, to plug in the LED chip, pay attention to look at the anti-reverse plug, but do not come hard.
4, pull the main brake switch test
Confirm that there is no problem with the wiring, and then pull the power switch, and then turn on the switch to test whether the lamp can be lit, there is no light after turning off the light, if there is a left and right to adjust the zero fire line.
5. The lampshade is installed and completed
When installing the lampshade, remember to clean the dust in the lampshade and then button it up.
The switch is broken. Just replace it.
First, the advantages of ceiling lights
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1, high brightness: the light source selected high-quality T5 water coated three base color powder ring lamp, slow light decay, high light efficiency, higher utilization efficiency
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2, high color rendering: the use of water-coated three-base color powder light source, good color rendering performance, close to natural light.
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3, long life: light source life of more than 8000 hours; The whole lamp life can reach more than 5 years.
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4, safe and reliable: electronic parts using high-quality raw materials, to ensure the stable play of the light source.
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5, good energy saving effect: the perfect combination of high-quality electronic parts and three-base toner makes the home more energy efficient than similar products.
The ceiling light itself lit up, indicating a short circuit, straight through, then you have to look at the wire is where?
It's up. Is it a lamp or a wire?
This is directly connected, he will light up on his own The switch doesn't work, or the switch Well, it doesn't work, he will direct the amount, you have to check, is it the switch or the lamp?
If it is a switch, switch the lamp cap and change the lamp cap.
Can not hear the place can not hear the ceiling light itself on, indicating that it is a short circuit, straight through, then you have to look at the wire is where?
It's up. Is it a lamp or a wire?
This is directly connected, he will light up on his own The switch doesn't work, or the switch Well, it doesn't work, he will direct the amount, you have to check, is it the switch or the lamp?
If it's a switch, switch the lamp head to change the lamp head, can't hear the place, can't hear
Self-lighting is because the switch controls the neutral line, the lamp and the wall generate loop light, and the switch is changed to the fire line control.