How to repair LED strip lights
As a mainstream product of modern lighting, LED strip lights are widely used in home, commercial and industrial scenes. However, failure will inevitably occur after long-term use. This article will provide you with a detailed maintenance guide based on the hot topics and hot content on the Internet in the past 10 days.
1. Common faults and causes of LED strip lights
| Fault phenomenon | Possible reasons |
|---|---|
| Not bright at all | Power failure, line disconnection, driver damage |
| Part is not lit | LED lamp bead is damaged and circuit contact is poor |
| flickering | Voltage instability, drive failure, poor contact |
| Brightness dims | LED aging, insufficient power supply |
2. Preparation of maintenance tools
Before starting any repairs, make sure you have the following tools ready:
| Tool name | Purpose |
|---|---|
| Multimeter | Detect voltage and current |
| soldering iron | welding line |
| screwdriver | Disassemble the light fixture |
| Insulating tape | insulation protection |
3. Detailed explanation of maintenance steps
1. Check the power supply
First, use a multimeter to check whether the power supply is normal. Set the multimeter to the voltage range and measure whether the voltage at the output terminal of the power supply is consistent with the rated voltage of the LED strip light. If the voltage is abnormal, the power adapter may be damaged and needs to be replaced.
2. Check the wiring
If the power supply is normal, next check whether the circuit is disconnected or has poor contact. Use the on-off setting of the multimeter to check the connection status of the lines one by one. When a broken wire or poor contact is found, you can use a soldering iron to resolder it.
3. Check the LED lamp beads
If part of the lamp does not light up, it may be that the LED lamp bead is damaged. Use the diode setting of the multimeter to check whether each LED lamp bead is working properly. Damaged lamp beads need to be replaced. Be sure to choose lamp beads of the same specifications.
4. Check the driver
If no problem is found in the above steps, the driver circuit may be faulty. Driver maintenance requires certain electronic knowledge. It is recommended that non-professionals replace the driver module directly.
4. Maintenance precautions
| Things to note | Description |
|---|---|
| Power off operation | Be sure to disconnect the power supply before servicing to avoid electric shock |
| Anti-static measures | LEDs are sensitive to static electricity. Wear an anti-static bracelet when operating. |
| Correct welding | The welding time should not be too long to avoid damaging the LED |
| Security testing | After repair, power on and test first to confirm there are no abnormalities before installation. |
5. Sharing of popular maintenance skills
Based on the Internet hot spots in the past 10 days, the following are some practical LED strip light maintenance tips:
1.rapid detection method: Use a 3V button battery to directly test a single LED lamp bead, and you can judge whether it is good or bad without desoldering.
2.emergency repair: For a small amount of damaged LED lamp beads, you can short-circuit both ends to allow the current to bypass the damaged lamp beads.
3.Waterproof treatment: After repairing outdoor LED strip lights, remember to seal the joints with waterproof glue.
4.Improved heat dissipation: When the LED brightness drops, check whether the heat dissipation is good and install a heat sink to extend the life.
6. Maintenance cost reference
| Maintenance items | Material cost | Labor cost |
|---|---|---|
| Replace power supply | 20-50 yuan | 30-50 yuan |
| Replace LED lamp beads | 1-5 yuan/piece | 20-30 yuan |
| Replace driver | 30-100 yuan | 50-80 yuan |
| Whole replacement | Depending on the price of lamps | Installation fee 50-100 yuan |
7. Repair or replace?
When the LED strip light fails, you need to decide whether to repair or replace it based on the following conditions:
1.Suggested repair situation: The lamp has a short service life (within 1-2 years), the fault point is clear and the maintenance cost is less than 30% of that of a new lamp.
2.Recommended replacement situations: The lamp has been used for more than 3 years, a large area of the LED lamp beads is damaged, or the repair cost exceeds 50% of a new lamp.
3.special circumstances: High-end customized LED strip lights, the repair value may be higher than replacement.
Through the above detailed maintenance guide, I believe you can solve most of the LED strip light fault problems. If you encounter complex situations, it is recommended to consult professional maintenance personnel.
check the details
check the details
en
