Why are my LED lights not working

LED Strip not working, is generally three cases. First, power problems, second, LED strip or connector and controller damage, third, environmental problems. We need to check it in these three aspects.

LED strip does not light up at all?

1. Confirm that your power supply's voltage and current rating are compatible with your LED strip.

For example, your power supply is 12V DC, it will not work with a 24V LED strip. Check the back of the power supply unit, which will have the output voltage marked. Then, check the LED Strip itself, which will have its input voltage marked at the LED strip connection points.

2. Confirm that your power supply is working correctly.

3. Check and isolate other accessories on the same circuit.

4. Check for any visible loose connections, make sure all of your connectors and wires are in place and have not fallen out. Try tightening screws on DC adapters, and re-inserting LED strips into solderless connectors, which are common contact failure points.

Note: the power supply must be powered up for this test.

LED strip has sections that do not light up?

If you have an entire LED Strip segment illuminated but notice a section of the LED strip that remains dark, you may have an "open circuit" in one of the sections.

What this means is that due to a manufacturing flaw or some mechanical damage during shipping or installation, one of the LEDs or components for a single section has come loose, resulting in a complete electrical disjoint for just that section of LEDs.

If you are familiar with how to solder, you may want to try reheating the solder joints for each of the LEDs and components along that dead section. If not, your best bet would be to ask your supplier for a replacement (if they provide a warranty) or simply remove the failed section by cutting along the cut-lines and rejoining the two segments together using connector clips.

If your LED strips not working after cutting, you can refer to this " How to Fix Xiaomi LED Strip Not Working After Cutting? " post to get the answer.

NOTE:

1. The high-temperature resistance of LED strip is not good, therefore, if the welding temperature and welding time of LED are not well controlled in the process of production and maintenance, the LED chip will be damaged because of ultra-high temperature or continuous high temperature. It causes the false death of the LED lamp belt.

2. LED is an electrostatic-sensitive element, so if the electrostatic protection work is not done well in the production process, the LED chip will be burned out because of static electricity, resulting in the extinction of an LED strip.

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When you turn the switch on an LED light, it doesn’t always turn on. Sometimes they will flicker or even blink before turning off. What could be wrong? There are a few potential reasons why your LED lights may not turn on. Read this blog post to find out the 7 most common reasons that LEDs won’t turn on.

Bad Pin Connection

If your LED lights have a bad pin connection, they will not turn on. This can be easily fixed by replacing the pin connection with a new one. In order to determine that this is the cause of the issue, you can disconnect the pin and take a look, sometimes these will be bent or not fully connected, but if they are not it is always a good idea to check and rule out this issue.

Incorrect Power Source

Not using the right power source or using a bad power source can cause LED light failure. Make sure that you are using the correct power source for your lights, as each type of led bulb will require a different voltage to work correctly.

To learn more about the power with your LED lights check out our blog on what happens if you use too much voltage.

Bad Capacitors

Bad capacitors can cause your LED lights not to turn on. These are little pieces of circuitry that help the light work correctly, and if they go bad then this could be why your lights aren’t working right now!

Instead of having to purchase an entirely new light string, you can just replace the capacitors. Sometimes buying a set comes with several different types of capacitors so it’s likely that one will fit your lights perfectly.

Bulbs Are Too Tight

LED Bulbs that are too tight can cause an issue and actually end up not working.

LED bulbs are designed for an easy installation but sometimes the LED bulb ends up being too tight on the socket of the lamp or fixture. When this happens you will need to use a little more effort and force to push it in all the way, which is normal because they are not supposed to be loose like old lightbulbs were before.

But if the LED bulb is pushed in all the way and still does not work it can be a problem because you will need to try pushing harder to get it working.

Grid Problems

Grid Problems cause LED not turning on because of a few different reasons that might happen. If the power supply is plugged into a surge protector or an extension cord it could be possible that there was too much electricity flowing through the grid and it caused you to lose one of your LEDs.

Despite LEDs not requiring much power to run properly, in combination with other devices on the grid  it is possible that your grid can be overwhelmed and not run the proper levels to the LED lights.

If this happens you may want to take a step back and look at what is on the grid.

Is there anything that could be turned off?

Can you turn this device into a separate circuit with its own breaker to avoid too many devices in one location of the building running at once?

Low Quality

If you have a low end LED strip , you may notice that it doesn’t work as well as a higher quality strip. And in the worst cases it may not turn on at all.

Some low end strips will flicker or even slightly dim when the power supply is connected to them. It’s not an issue with all of them, but some just don’t do what they’re supposed to do and this makes your hard earned money go down the drain.

At this point you may be wondering what makes a good quality strip different from one with subpar performance. A lot of it has to do with the way they are wired.

Damaged Or Loose Wires

Another common reason that LED strip light won’t turn on is because the wires leading to it are damaged or loose. There’s a chance your lights may have been cut when they were manufactured, which means you’ll need to return them and get new LED strips.

Wiring can also be damaged from weathering or animals especially if they are outdoor lights. There are also cases where the wiring was shorted, which is when two of the positive wires touch each other or a negative wire touches another negative one.

When your LED strip lighting doesn’t turn on, this means that there’s something wrong with it and you’ll need to figure out what exactly went wrong so you can fix it.

The Best LED Strips Available For Your Lighting and Decoration Needs

The best quality LED strips have a long lifespan and are waterproof. They also don’t overheat as much which is why they last longer than lower end models.

They turn on immediately when you plug them in so there’s no flickering or dimming issues with these lights, even if the power supply isn’t perfect for them.

Check out our quality selection of LED Strips to find the perfect lights for your lighting or decoration needs.

Disclaimer: Our products are ROHS-compliant. This means that we are aware they may contain lead but do not exceed the allowable amounts.