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Common faults of LED lights and their solutions
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Common faults of LED lights and their solutions

2024-10-24

a

‌LED light does not light up‌


‌Check the power supply‌: Make sure the LED light is connected to the power supply and the power outlet has power. You can try using other electrical appliances to test whether the socket is working properly. ‌1

‌Check the switch‌: Make sure the switch is on. Sometimes the switch may cause the light to not light up due to poor contact.

‌Check the lamp beads‌: Observe with the naked eye whether there are small black spots on the damaged lamp beads, or use a multimeter tool to check. Normal lamp beads will light up, and those that do not light up indicate a fault.

‌Check the driver‌: If the starter or driver of the LED light fails, it is recommended to replace it with a new driver or starter.


‌LED light flashes‌


‌Check the power supply voltage‌: Use a voltmeter to measure the power supply voltage. If the voltage fluctuates greatly, it is recommended to contact the power company or a professional electrician for processing. ‌

‌Replace the drive circuit‌: If the drive circuit fails, you can consider replacing the drive circuit with a new one and choose products with reliable quality and matching Led Lights.

‌Enhance heat dissipation measures‌: For flickering problems caused by poor heat dissipation, the heat dissipation effect can be enhanced by cleaning the dust on the heat sink, adding a cooling fan, or improving the ventilation environment.

‌Check and tighten the circuit connections‌: Ensure that the circuit connections of the lamps are firm and not loose, and pay attention to check whether there are short circuits or poor contacts in the circuits. ‌

b

‌LED light dim‌


‌Check the polarity wiring‌: Make sure the positive and negative poles of the LED are wired correctly and avoid reverse polarity. ‌2

‌Reduce LED connections‌: If too many LED connections cause the voltage division to be too large, you can reduce the number of LED connections.

‌Ensure voltage consistency‌: Ensure that the switching power supply and LED voltage labels are consistent to avoid voltage mismatch leading to dim lights.

‌The LED lights of some lines do not light up‌


‌Check the plugging direction‌: Make sure the plugging direction is correct, remove it and plug it in the correct direction again.

‌Check the power output wiring‌: Make sure the red wire is connected to the positive pole and the black wire is connected to the negative pole. Find some wires that are plugged in reversely and reconnect them.

‌Lights on slightly after turning off‌

c

‌Adjust the direction of the neutral and live wires‌: If the neutral and live wires are connected reversely, just adjust the direction of the neutral and live wires to solve the problem. ‌3


‌Lamp fades and color fades‌


‌Replace the lamp bead‌: If the LED lamp bead is damaged, just replace it with a new one to solve the problem of light attenuation and color fading.

‌Buck capacitor and filter capacitor are damaged‌


‌Measure and replace capacitors‌: If the buck capacitor and filter capacitor are damaged, you need to measure and replace them with new ones to solve the problem of flashing lights.

‌Power input and DC output issues‌


‌Check the power input and DC output‌: If there is a problem with the power input and DC output, you need to check the power input and DC output to ensure that the power supply is working properly.