Common Problems about LED Lighting

Views: 0     Author: Zayn     Publish Time: 2022-03-03      Origin:

Due to various advantages such as low energy consumption or long life, more and more customers are using LED lighting. From a technical point of view, LED lights are more complex. In this article, we'll cover some common problems with LED lighting and what to do about them.

1.LED light flashes
2.Too bright
3.Dim light from LED lights
4.LED lights overheat

5. Buzzing noise
6. LED strip shows wrong color
7. LED lights attract insects
8. Blue Light Pollution

Common problems with LED lighting

1. LED light flashes

One of the most common problems with LED lights is flickering. In this case, the LED bulbs will blink, sometimes continuously, sometimes randomly. If you use poor quality LED bulbs or floodlights, the brightness of the lights rises and falls rapidly. If the flicker frequency is below 80 to 100 Hz, it can be observed with the naked eye. Our eyes have a hard time adjusting to this flickering light, so we need to understand why and fix the flickering LED lights.

(1) Loose wiring

If the wire connection between the light and the circuit is loose, the solution is to check all the connection points in the circuit to see if some of the wires are about to break or disconnect.

(2) Quality inspection of LED lights

If you bought a low-quality LED light, the light may also flicker quickly. Due to the poor welding technology between the gold wire and the LED chip, the internal components are easily loosened. Also, poor quality LED lights have a poorly designed PCB to receive current properly, so we see rapid changes in brightness.

An effective way to solve this problem is that you can buy a brand of LED light, the brand of LED chip they use is generally CREE XTE or Osram Square, these LED chips apply eutectic soldering technology to eliminate flicker on the LED light.

(3) High-power electrical appliances

For users with many high-wattage appliances in the home, the bulbs may flicker if you use them together on the same circuit. Because these devices draw maximum power, the LEDs are under wattage, resulting in flickering. To fix this, we can turn off some devices and see if the flickering problem improves.

More read: How to choose the waterproof level when buying LED lights?

2. Too bright

Sometimes LEDs get too bright for your needs. This may be due to two reasons. On the one hand it may be that the wattage of the bulb is beyond the requirements and secondly you may have a Kelvin temperature bulb which may be too bright at times.

You can fix these problems by blocking the extra light with fixtures. If your LED lights are dimmable, install a switch to control this feature. This protects your eyes.

Dim light from LED lights

3. Dim light from LED lights

Sometimes after installing the LED lights, you will find that the LED lights are very dim. This problem can occur with both indoor and outdoor LED bulbs.

(1) Improper power supply of LED lights

If the LED is not operating at rated voltage and current, the LED light cannot reach maximum brightness. You need to know exactly what the power, voltage and current input of the LED is. If the power rating of the driver does not match the power rating of the LED, the light will not light up or even burn out. It is therefore recommended to use the original setting of the LED light.

(2) loose wiring

Similar to flickering LED bulbs, if the wiring is not secure, some of the LED chips inside the lamp will not light up, reducing the overall lumen output.

(3) LED lamp aging

LED lights don't light up over time because the electronics inside the lights begin to degrade, causing them to no longer produce 100% lumens. Most LEDs have a lifespan of 50,000 to 100,000 hours, which equates to 20 to 30 years, depending on how long you use them.


(4) High ambient temperature

If the ambient temperature is very high, it may also cause the LED light not to light up. Studies have shown that LEDs produce maximum brightness at temperatures around 25°C. If the operating environment is very hot, such as 40°C to 60°C, the lumen output of white light will drop to about 40°C, 65% to 80% of the maximum.

Conversely, a cold environment is beneficial for an LED, as it can be brighter than its original value. For industrial applications such as foundries and nuclear power plants, ambient temperatures can exceed 80°C. Therefore, special reinforcement of LED luminaires is required.

4. LED lights overheat

Many different factors can cause LEDs to overheat. LED lights work better in cooler places. When LED lights get too hot, they don't last as long as expected; they don't light up enough, and they wear out.

So, what can you do to prevent your LED lights from overheating?

• Make sure to follow the manufacturer's guidelines when installing LED luminaires.

• Avoid installing LED lights in places with very high temperatures. Overheating can reduce the functionality and performance of the LEDs. Choose a cool place if you want them to perform better and last longer.

• Do not install LEDs in tight environments, as this will heat the device immediately. Installing LEDs in an open area is unlikely to cause the temperature to rise too high.

• Make sure the location where you plan to set up the LED lights is well ventilated. Good airflow benefits your LED fixtures and prevents heat from being trapped.

More read: 10 Advantages of Addressable LED Strip

5. Buzzing noise

LED lights that produce humming noises are undoubtedly disturbing, usually because of an overload in the circuit. For example, if the dimmer only supports 300W LED lights, but you connect a light fixture with more than 200W, there will be a buzzing sound.

The noise will arise from the resonance of the electronic components within the light, which resonates at a specific frequency, such as 100 to 120 Hz.

So, as soon as this happens, check your lights and circuits to be safe. In addition, we can also disconnect some lamps and see if we can improve the problem.

WS2811-Suntech6. LED strip shows wrong color

The role of the RGB LED strip is to display different colors. If you notice it's showing the wrong color, it means something is off.

When there is a problem with the wire connection or the LED controller has a problem, the color display is wrong. Still, you can check the wiring and make some replacements if necessary.

7. LED lights attract insects

Traditional lighting technologies are more likely to attract insects or bugs than LEDs, but some LED lighting systems are more attractive to insects because of the wavelength of light and heat they produce.

Generally, bugs are only attracted to certain types of wavelengths, around 400 to 600 nm.

Warm LED bulbs are a better choice if you want to eliminate insects roaming around your lighting system. Light above or below this range 2000K-5500K can attract insects, so make sure you buy LEDs that fall within the above range.

8. Blue Light Pollution

Blue light is another common problem with LED lights. While blue light can improve our reaction times and mood, it does affect our health at night. LED blue light can inhibit the production of melatonin in the body, which affects our sleep cycle and quality. Prolonged exposure to blue light may also damage the retina. Leaks of blue light can also pollute the    sky, causing skylight to appear at night.

To reduce the amount of blue light, we can choose LED bulbs with lower color temperature, such as 3500K to 5000K. For color temperatures over 6000K, LEDs produce more blue light. Depending on your needs and preferences, you can choose warm white LEDs (approx. 3000 to 3500K) to create a relaxing atmosphere.

For more LED industry knowledge, please contact Suntech team, Our professional engineers solve all problems for you, and we also have high-standard production lines to provide high-quality LED products, click here for priority consultation.

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