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In recent years, energy-efficient LED lighting fixtures have become more popular and can be found in a variety of settings. LED lighting is often divided into different classes according to its components and energy efficiency. LED COB (chip on board), LED Engine, LED Modules are the most typical LED lighting items. Today we will talk about the application field and working principles of the three main LED lighting items.

LED COB stands for “Chip On Board”. It is a type of multi-chip LED packaging technology where multiple LED chips are installed directly onto a metal core circuit board or substrate. LED COB has become popular due to its high efficiency, rapid response time and the ability to produce intense light with minimal energy input. The technology is used in a variety of applications wherehigh brightness and energy efficiency are critical, such as automotive lighting, outdoor lighting, display lighting, and lighting in automation and security applications.

In terms of its working principle, LEDs do not have filaments or electrodes. They produce light by releasing high energy photons from the valence electrons of a semiconductor. When power is applied to an LED, the electrons move to the n-type material, releasing the energetic photons. This process is called electroluminescence. LED COBs are made up of many individual LED chips attached to the sameprinted circuit board. Each of the LED chips is connected by a series of conductive pathways. When powered, the current flows through the LED chips in a predetermined fashion, producing light.

LED Engines are units that typically include a heat sink, LED board and driver. They are commonly used as replacements for older filament style bulbs and can be used in a variety of applications. LED engines are available in a range of wattages and lumen outputs, making them exceptionally flexible. In addition, they are more energy efficient than traditional bulbs, offering an energy savings of up to 90%.

In terms of working principles, LED engines consist of LED chips mounted on a PCB that are connected to a LED driver via wires or connectors. The LED driver is an electronic circuit that controls the current and voltage supplied to the LED and regulates the amount of power going to the LED. When the LED driver is connected to a power source, it sends pulses of electrical current to the LED chips, which then produce light. The LED driver also protects the LED from excessive current, which helps ensure long-term performance and durability.

LED Modules are composed of a printed circuit board, a heat sink, and a driver. They are designed to provide a fully optimized, high-performance lighting solution for a variety of applications. LED modules are typically designed for linear retrofitting applications, such as parking lots and garage lights, street and area lighting, wall packs and flood lights, and signage and billboard lighting.

The working principle of LED Modules is similar to that ofengine-type LED lights. The LED module is composed of a printed circuit board, LED chips, and a LED driver. The LED driver regulates the amount of power going to the LED chips, ensuring the LED chips are not overexposed to current. When connected to a power source,the LED driver sends electrical pulses to the LED chips, causing them to emit light.

In conclusion, LED technology is continuously evolving, making it possible to upgrade existing fixtures and to create new, energy efficient lighting solutions. LED COB, LED Engine, and LED Module technology offer a variety of benefits for commercial, industrial and residential applications.

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