1.Heat dissipation
The low resistance to heat of LEDs can cause issues with the life span of the wick.
2.Light perception
The LED light’s pure spectrum is among the biggest disadvantages. It’s because it’s very harmful for vision. The human eye cannot concentrate on a single spectrum of light for long as LEDs aren’t great at rendering colors.
3.Light decay
The light attenuation of LEDs is extremely serious. The majority of LEDs used in lighting in the home is restricted in terms of size, and it is challenging to do the job effectively in protecting. This is especially true in areas that have a large voltage switches and significant interference.
How long will LED lights last?
If there is obvious diminution of light intensity after just one semester of use, there is likely that there is a quality problem.
Even if it’s used for eight hours per day, the longest term is approximately 1,000 hours, and the illumination will be evident after 1000 hours of usage. Change isn’t a good thing.
The average LED’s lifespan is about a year.
First, let’s discuss the reasons the reason why it isn’t recommended. The life span of LEDs is usually greater than 3000 hours. The duration refers to its ability to function normally and not its brightness.
Better LEDs canguarantee an 80% brightness following long-term operation of 5-8 years. The average brightness per year is lower than 3percent. This is hard to detect with the naked eyes.
The lamp on the desk showed clear brightness changes after 1,000 hours of use, indicating that the attenuation in brightness was extremely serious.
One of the disadvantages of LED lighting is that there may be an issue with the circuit, or a poor heat dissipation. This can lead to an extremely low light output.
Why does brightness decrease?
The reason behind the decrease in brightness is the light attenuation;
Light attenuation is the gradual reduction in the LED’s efficiency in luminous light over time.
The loss of heat by lamps is closely linked to the attenuation of light. The more heat is lost, the greater the light attenuation.
The service life is determined by the time at which the lamp’s brightness can be maintained at 80 percent or more than its factory brightness. After 3-5 years, if the lamps have poor workmanship there will be visible changes.
How can you tell if the brightness is adequate
Directly referring to national standards, for learning and writing There are guidelines for desktop illumination:
The minimum amount must not be lower than 500 Lux.
It is possible to use your mobile phone to do simple tests to find out whether the lighting on your desktop meets the requirements:
Utilize the CPU-Z application and adjust the column to the Sensors. The column of light is the value actually measured by the front light sensor. The value is used to determine the size. The error is tiny:
The lighting source used by LED lighting is LED. The optimal lifespan for LED is 100,000 hours.
However, due to factors such as the packaging materials as well as the environment in which they are used, the driving power supply as well as other factors. The service life of LED lights with a certain quality is usually about 30,000 hours, and high-quality ones can go up to more than 50,000 hours.
However, even if it’s not affected by other causes, LED itself also has light decay. When the luminous flux falls to about 80%, it is believed that the LED may be at its zenith.
In this case, we can observe that it is normal for the brightness of LED lamps to decrease due to the light source, however it generally takes a long time.
Work environments like high humidity and temperature will also affect the life of the light source, including factors such as the optical design of the lamp.
The LED’s driving power supply is a further important element that determines the life span of LED lamps.
The power supply that drives LEDs might not be working however the light source is still working. The driving power supply parts and the capacitors inside, have a limited lifespan.
Good The price is a significant difference between regular capacitors and capacitors. In addition, the life of the capacitor directly impacts the lifespan of the power supplies that drive it.
LEDs are powered by low voltage and requires a power supply that can supply the same amount of current. The power supply that drives the LED could be broken which causes the light to flicker or not illuminate.
The image above is an LED life test chart made by CREE. This chart displays the respective value of the luminescent flux determined experimentally.
However, different factors influence lifespan. The test instructions provided by CREE only address these aspects but do not offer different charts for the various aspects.
Temperature, for example, is the most common junction temperature. Beyond this, the life will be reduced.
According to this figure the light decreases to 95% around 6,000 hours and to 85% at 23,200 hours.
CREE is the first echelon of LED products available in the world and the other LEDs currently do not match it.
This CREE chart is significant for reference However, it’s under lab conditions at all times and the use of it tends to be lower than these data.
For instance: if the light dims to 95 percent at 6000 hours It could actually decrease to 85% or less after 6000 hours of usage. Heating is the main cause.
How can there be such ideal conditions to ensure that the LED junction temperature is lower than 25 ° Celsius?
LED is reputed to be the coldest light source but it is actually relatively incandescent. The benefits of this particular technology are evidently exaggerated.
Even for high-end commercial LEDs such as CREE, the efficiency of light is 20%, and the rest of 80percent or more of the energy is used for heating. So, from this point of view how cold is it?
Most users are not concerned about the problem with the light, but rather the fact that it is not lit, which was the case for the respondent, who posted a photo of the Op E27 lamp mouthLED. Also, there is the issue of the circuit that drives it.
Most often, LEDs are placed on the ceiling so that the lamp head faces towards the downwards. This isn’t optimal for the circuit that drives LEDs.
The reason for this is that at least 80% of disadvantages of LED lights is roasting the circuit driving the circuit.
As you can see from the casing in that picture It’s likely the driver that’s malfunctioning, not the LED tube. The driver circuit will wear out faster if an integrated LED is used to light the space.
