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How To Fix Led Lights When Half Are Out?


Many individuals have encountered an issue where their LED light strips are not functioning correctly. Specifically, half of the LED strips are working fine, while the other half remains unlit. This puzzling situation can leave you perplexed, but fear not – we’re here to guide you through the process of diagnosing and resolving this problem. Below, we’ve outlined the steps to address this issue effectively:

1.Examine the Unlit Segment of the LED Strip

When faced with half of your LED strip not illuminating, start by inspecting the unlit portion of the strip. Check the voltage output of the unlit segment; there might be an underlying issue affecting that particular part of the LED.

Begin at the point where the LED strip is unlit and systematically measure the voltage along the strip until you identify any anomalies. Once you pinpoint the faulty area, proceed to troubleshoot.

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2.Assess for Heat-Related Metal Fatigue

Insufficient heat dissipation could also be a contributing factor to the problem. Heat buildup might cause stress fractures in the weakest section of the LED strip, leading to the issue you’re facing.
If the copper tracks on the LED strip are thin enough, the problem may be resolved. However, if they aren’t, you might encounter damage that’s more challenging to repair.

3. Verify the Power Supply

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Often, LED strip issues are rooted in power supply problems. To avoid ongoing troubles, thoroughly examine the power supply.

Begin by checking the status of the LED strip unit and examining the hardware for any visible issues. If everything appears to be in order, turn your attention to the power output from the source. Ensure that the source’s output matches the power requirements of the LED strip, taking into consideration the specific type of LED strip installed in your setup. A multimeter or voltage-measuring device can aid in this process.

If you identify suboptimal power output from the source, consider trying an alternative power source. Options range from utilizing backup battery packs to switching outlets. Prioritize ensuring the LED strip unit is in good condition and address any power-related issues. If the outlet itself is damaged, seek assistance from a qualified electrician promptly to prevent potential fire hazards. 

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4.Adjust and Inspect Connectors

Connectors play a crucial role in the flexibility and functionality of LED lights. Ensuring proper connector alignment is essential for the system to operate correctly.

If you’re encountering unresponsive lights, examine the connectors for damage or misalignment. In cases where connectors are broken, it’s best to replace them. Obtaining new connectors from the dealer is a reliable solution, avoiding the need for quick fixes that may not yield lasting results.

5. Investigate Adapter Problems

Consider the adapter as another potential source of trouble. Damage to the adapter, sometimes incurred during shipping, could lead to operational issues.

If you notice any physical flaws in the adapter, consider contacting the dealer for a replacement. This can typically be done without incurring additional costs, and the dealer will assist in facilitating the replacement process.

6. Verify Strip Length

The length of the LED strip can influence its performance. Ensure that the strip length aligns with the recommended operating range provided by the power supply. Going beyond this range may result in flickering lights and other problems.

If you suspect the strip length is excessive, consider dividing it into smaller sections and testing the lights again. Adjusting the strip length appropriately can often rectify issues related to strip performance.


About Bobby

Hello, I'm Bobby, I'm a passionate and creative professional commercial lighting specialist with a wealth of experience and a wide range of knowledge. Over the past 10 years, I have focused on providing efficient, energy-saving and innovative lighting solutions for various commercial projects. I am sensitive to new technologies and design trends, constantly seeking the best optical effects and lighting experience.