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LED light engine booming industry will usher in a new era

March 23, 2023

1. The current pattern of the LED industry

All LED luminaires are made up of three major components, light source, power supply and heat sink housing.

The LED light engine is booming. The industry will usher in a new era.

Because these three parts of the technology and manufacturing process are completely different, they are usually manufactured in three industries, and of course can be subdivided into more professional industries. For example, the light source can be divided into two industries, such as LED chips and phosphors. But now the popular COB light source combines these two parts together. Power supply is a specialized industry involving extremely complex electronic technology and even chip technology. At present, most LED power supplies are still powered by well-known chip manufacturing companies at home and abroad. As for the radiator shell, on the one hand, it involves the knowledge of thermodynamics, on the other hand, it involves the manufacturing process of precision die-casting of aluminum processing, and it must also be made by a special company. Of course, there are also some large companies that cover the manufacture of all three components, but such companies are few and far between.

2. What is the LED light engine?

The LED light engine actually puts the LED power supply on the aluminum substrate of the LED light source to become a component. However, there are two main types of LED power supplies, one is a switching power supply and the other is a linear power supply. The advantage of the switching power supply is that the efficiency is relatively high (about 90-95%). The disadvantage is that the number of components used is large (about 30 or more), the volume is large, and the reliability is low. The advantage of linear power supply is that the number of components is small (about 6-7), small size, high reliability, and the disadvantage is low efficiency (about 85%).

The aluminum substrate was originally installed with LEDs. If the switching power supply is to be installed, it is completely impractical.

The LED light engine is booming. The industry will usher in a new era.

LED light engine made of switching power supply

3, only a linear power supply can be made into LED light engine

From the number of components, the number of linear power components is small, and it does not appear crowded on the LED aluminum substrate.

The LED light engine is booming. The industry will usher in a new era.

A light engine with a linear power supply has fewer than seven components, which is what the market calls AC light engines.

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