Most designers believe that the quality of all LED products is the same. However, there are many manufacturers and suppliers of LEDs , and Asian manufacturers supply low-cost LEDs to the world. Surprisingly, only a small percentage of these manufacturers are able to produce high quality LEDs. For applications that are only used as a simple indicator, low quality LEDs are sufficient. However, high quality LEDs must be used in many areas requiring consistency, reliability, solid state indication or lighting, especially in harsh environments such as highways, military/aviation, and industrial applications.
Fundamental factor
What are the factors that distinguish the quality of LEDs? How do you tell the difference between the two LEDs? In fact, choosing high-quality LEDs can start from the chip until the assembly is completed. There are many factors to consider during this period. Manufacturing companies can produce excellent, consistent wafers from high-quality LED manufacturing materials, which in turn can produce superior chips. The chemical materials used in the wafer production process are quite important factors in determining the performance of all LED performance specifications. A 2-inch wafer can cut more than 6,000 LED chips , and only the performance of individual chips is different from the overall one. Chips made by a good chip maker have very little difference in color, brightness, and voltage drop. When the LED chip package is completed, many of their performance indicators may have great differences, such as viewing angle. In addition, the influence of the encapsulating material is also considerable, for example, silicone is better than epoxy resin.
Classification ability
Good LED manufacturers can not only manufacture high quality chips, but also have the ability to classify and package LEDs based on their color, brightness, voltage drop and viewing angle. High-quality LED suppliers offer customers products with consistent work characteristics, while lower-quality LED suppliers can only provide LEDs that are similar to "mixed". For high-end, quality-critical applications, such as boundary lights for airport runways, FAA-level color and brightness specifications must be met. To ensure performance and safety, the consistency of LED packaging is also strictly limited. LEDs with poorer packaging levels are used in demanding applications that can lead to premature failures and other inconsistencies, which can lead to major accidents. In order to avoid equipment downtime and to ensure reliable operating characteristics of the LEDs specified in the design, it is important to avoid the use of "mixed" products in high-end and quality-critical applications.
For high-end, quality-critical applications, such as boundary lights for airport runways, FAA-level color and brightness specifications must be met. To ensure performance and safety, the consistency of LED packaging is also strictly limited. LEDs with poorer packaging levels are used in demanding applications that can lead to premature failures and other inconsistencies, which can lead to major accidents. In order to avoid equipment downtime and to ensure reliable operating characteristics of the LEDs specified in the design, it is important to avoid the use of "mixed" products in high-end and quality-critical applications.
Product matching ability
In addition to discrete LEDs, LED assembly and power supply have a very important impact on its performance, brightness and color. Since ambient temperature, operating current, circuit structure, voltage spikes, and environmental factors can all affect LED performance, proper circuit design and assembly are key to protecting LEDs and ensuring performance. LED manufacturers also use a variety of techniques and materials to design circuit structures and assemblies. In most cases, the difference in LED assembler experience can result in differences in overall performance and reliability for LEDs in the same application.
LED Tunnel Light is a special lamp used in tunnel lighting to solve the "black hole effect" or "white hole effect" ,which caused by the sudden change of vehicle brightness when entering or leaving the tunnel.
Advantages of LED tunnel lamp: energy saving , high light efficiency, long life, with different reflectors can realize multi-purpose lighting;
Through the softening treatment,LED tunnel light will not make the person produce dazzling or other uncomfortable reaction.
LED Tunnel Light
Waterproof tunnel light,Waterproof LED 150W tunnel light,Portable IP66 mining tunnel light,IP66 explosion-proof mining tunnel light
Jilin Province Wanhe light Co.,Ltd , https://www.wanhelight.com