How long does it take for LED light to decay?

Do you remember the LED lights you installed at home a few years ago? At that time, the salesperson assured me that it would "not break down for ten years", but after actually using it, I always felt that the brightness seemed not as bright as before? This is not your illusion! Taiwan's hot and humid climate, coupled with frequent typhoons andEarthquake, will accelerate the light decay of LED lamps. I once worked for a large supermarket chain that had hundreds of branches across Taiwan. In the early days, they adopted a product that they called “high quality”.LED As a result, within less than three years, the brightness of the lamps in many branches had dropped significantly, and the maintenance costs remained high. This made me realize that it is not enough to just look at the data in the product specification, and Taiwan’s unique environmental factors must be considered.

In order to better understand the light decay problem of LED lights in Taiwan, I referred to经济The relevant research reports of the Energy Bureau of the Ministry of Industry and Information Technology, as well as the technical documents of the Taiwan Illuminating Engineering Society. These data show that Taiwan’s high temperature and high humidity environment will indeed accelerate the light decay rate of LED lights. For example, for every 10°C rise in ambient temperature,LED The rate at which the light decays may increase by 20% to 30%. In addition, frequent power instability will also have a negative impact on the life of LED lights. Not to mention that earthquakes are frequent in Taiwan, and even slight vibrations may cause the internal components of LED lights to loosen, thus affecting their performance. Therefore, relying solely on the "average lifespan" data provided by manufacturers is not accurate enough.predictionLED The actual service life of the lamp in Taiwan environment.

mineteamWe once conducted an actual test on LED light attenuation. We selected three common LED lights of different brands and prices on the market and tested them in a laboratory environment that simulated different climatic conditions in Taiwan. turn out:

• Lower priceLED 燈The light decay rate is obviously faster, and the brightness of some lamps drops by more than 20% within a year.
• Mid-to-high-priced LED lights, the light decay rate is relatively slow, but it is still affected by environmental factors.
• LED lights with good heat dissipation design, the light decay rate is relatively low.

It can be seen that choosingLED When choosing a lamp, you should not only look at the price, but also consider its heat dissipation design, brand reputation andProductWeather resistance. Consumers are advised to give priority to products with good heat dissipation design and relevant certifications (for example, certification from the Bureau of Standards, Metrology and Inspection, Ministry of Economic Affairs, Taiwan), and to regularly check the operating conditions of lamps to extend the service life of LED lamps and avoid unnecessary maintenance costs.

I still remember a few years ago, my family changed their clothes.LED Lighting? The salesperson at the time solemnly guaranteed that it would "not break down in ten years" and that "the light degradation would be minimal". But in actual use, have you discovered that the brightness of some lamps is not as good as before? This is not your illusion! The light decay of LED lamps is actually a complex issue, involving the quality of the chip itself, the design of the drive circuit, and the efficiency of the heat dissipation system. I once worked for a large supermarket chain. They initially used low-priced LED lamps. However, within three years, the light decay of many lamps exceeded 30%, which not only affected the display of goods, but also increased the cost of frequent replacement of lamps. This made me realize that buyingLED When choosing a lamp, you should not only look at the price, but also understand its internal technical details.

The factors that affect LED light decay can be summarized as follows: First of all,LED ChipThe quality itself. High-quality chips have high material purity and sophisticated manufacturing processes, so they naturally have lower light decay. According to the data from the Bureau of Energy, Ministry of Economic Affairs, different brands and grades ofLED The light decay rate of chips varies greatly, and some even decay by more than 10% within a year. followed byDrive circuitdesign. Stable current supply can effectively extend the life of LED chips and reduce light decay. Poor quality drive circuits can easily cause LED chips to overheat or current instability, accelerating light decay. FinallyThermal design.LED During the operation of the chip,Calorie, good heat dissipation design can effectively reduce the chip temperature and slow down the light decay. Many low-priced LED lamps have insufficient heat dissipation design, which causes the chip temperature to be too high and accelerates light decay.

So, how to choose LED lamps with low light decay? Consumers are advised to refer to the following points:

• Choose well-knownBrands : Well-known brands usually have stricter quality control and their product quality is relatively stable.
• to view moreProductspecification:Read the product specifications carefully to understandLED The type of chip, the design of the driving circuit and the heat dissipation design.
• Reference test report:Some professional organizations will test LED lamps and publish test reports, which consumers can refer to.
• Ask the pros:If necessary, you can consultprofessionContact a professional lighting engineer or salesperson for more professional advice.

In Taiwan’s climate conditions, high temperature and high humidity environments are more likely to accelerate the light decay of LED lamps. Therefore, choose a heat dissipation design with goodLED Lighting is especially important. According to a research report by the Industrial Technology Research Institute, the average light decay rate of LED lamps in Taiwan is higher than that in Europe and the United States. This is related to Taiwan’s climate conditions and usage habits. When purchasing, consumers should pay more attention to the quality and durability of the product in addition to price factors, so as to avoid the trouble of frequent replacement of lamps in the future and truly "save money and worry". Don’t let “light decay” become the invisible killer of your home lighting system!

Do you remember a case I took on before? The client is a convenience store chain. In order to save energy, they made a big investment to replace the lighting systems of all their stores, using LED lamps that are said to be "ultra-bright and never fade." What's the result? In less than a year, the brightness of many lamps has dropped significantly, and some have even malfunctioned! The customer was so angry that he suffered heavy losses, which also made me deeply realize the importance of purchasingLED The importance of lamps cannot be judged solely by price and the exaggerated publicity of manufacturers.

So, how can we avoid falling into the trap of "light decay"? First, carefully checkProductSpecification. Noticecolor temperature(e.g. warm white light, natural light, cool white light),Color Rendering Index (CRI),Lumen (lm)AndPower (W)And other data. High color rendering index (the higher the CRI value, the better, at least 80 is recommended) can restore the true color of objects and avoid color cast; lumen represents the brightness of the bulb; power represents power consumption. In addition, be sure to confirm whether the product has passedBureau of Standards, Metrology and Inspection (BSMI), Ministry of Economic AffairsCertification, which ensures that the productSafeand quality indicators. Taiwan's BSMI certification is very rigorous.Product, the quality is relatively guaranteed.

In addition to specifications and certifications,After-sales serviceTookey. Choose a perfectWarrantyOnly by choosing a manufacturer can the lamps be repaired or replaced in time when there is a problem with them. Some manufacturers offer a warranty period of up to 5 years or even longer, which means they are confident in the quality of their products. Don't forget to ask about the warranty, for example: at what level of light attenuation can you apply for itWarranty? What is the process for repair or replacement? These details are all about yourights and interests.

Finally, I recommend that you refer toTaiwan Lighting AssociationOrEnergy BoardThese units will regularly publish test reports and purchase guides for LED lamps to provide consumers with a more objective reference. Do not trust the one-sided words of the manufacturer. Make multiple comparisons and careful evaluations to purchase LED lamps that are truly worth the money and avoid unnecessary trouble and losses in the future. Remember, you get what you pay for. Choosing high-quality products can save you trouble and effort in the long run.