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LED Lighting - COBs, Engines, Modules

LED lighting has become a popular choice for lighting applications across numerous industries. The application field and working principles of this type of technology depend on the specific types of LED lights used. COBs, engines, and modules all offer different advantages and features, so understanding what each type of lighting technology offers is important when it comes to deciding which type is best suited for a particular project or application.

COBs, or “chip on board” LEDs, are a type of light emitting diode (LED) that use multiple LED chips arranged in large or custom-shape arrays. This type of LED has become popular because it is usually much brighter than other types of LEDs. COBs consist of a circuit board and integrated circuit chip that is placed on a micro-sized substrate. The LED chips are connected by copper micro-lead frames and wirebonds between them, and the substrate is often used for wavelength control.

In terms of its application field, COB LEDs are used in many different types of lighting applications. These include overhead lighting, spotlights, wallwashing, cabinet lighting, and decorative lighting. Its working principle relies on the principle of current flow. The amount of current that flows through the LED chips determines things such as the brightness level and color temperature. Depending on the design of the circuit board, the current may be either alternating current (AC) or direct current (DC). The current flow causes the electrons to move through the LED chips, releasing light in the process.

LED engines are basically pre-assembled LED modules. They usually include an LED light source, a driver, a thermally conductive path, and sometimes an optical lens. LED engines are ideal for applications where a specific light intensity, wavelength, or color temperature is desired. Some advantages of using LED engines include improved light output, higher reliability, and a more efficient use of energy.

In terms of its application field, LED engines can be used for a wide range of industrial, commercial, and residential lighting. The working principle of LED engines is similar to that of COBs; however, LED engines are often arranged in a specific way that allows for better optics and overall performance. The LED driver supplies the necessary amount of current to the LED source, and the optical elements direct the angle and intensity of the light.

LED modules are also pre-assembled lighting units. They include one or more LED sources, an LED driver, and an LED light guide. LED modules are usually used in applications where a specific light intensity is desired, or when the environment requires lighting with certain characteristics such as color accuracy or uniformity. LED modules are also often used in situations where the number of components required would exceed the space restrictions.

The application field of LED modules covers all of the same areas as LED engines, although they are often seen as more specialized components for specific applications. Like LED engines, LED modules work on the principle of current flow. The LED driver supplies a specific amount of current to the LED source, and the LED light guide is used to direct the angle and intensity of the light.

COBs, engines, and modules are all different types of LED lighting that offer unique advantages and features for different lighting applications. While understanding their differences is important for making the best choice for a particular project, their working principles are all based on the principle of current flow. Depending on the design of the circuit and the type of LED light chosen, the brightness level and color temperature of the light can be adjusted and controlled.