The advantages and differences between of COB and LED
Blaze Display Technology Co., Ltd. | Updated: Nov 27, 2018
With the continuous advancement of solid-state lighting technology, COB (chip-on-board) packaging technology has received more and more attention. Because COB light sources have the characteristics of low thermal resistance, high luminous flux density, and uniform light emission, they are used in indoor and outdoor lighting fixtures. It has been widely used, such as downlights, bulb lights, track lights, spotlights, street lights, industrial and mining lights and other commercial lighting products and outdoor lighting.
The advantages of COB packaging over traditional LED packaging include Manufacturing efficiency advantages, low thermal resistance advantages, light quality advantages, application advantages, electrical stability advantages, and cost advantages, indicating that COB packaging will lead the development of LED lighting in the future. status.
COB light source is a high-efficiency integrated surface light source technology in which the LED chip is directly attached to a high-reflectivity mirror metal substrate. This technology eliminates the concept of brackets, no electroplating, no reflow soldering, and no placement process, so the process is reduced by nearly three points For one, the cost has also been saved by a third.
The COB light source can be simply understood as a high-power integrated surface light source, and the light emitting area and shape size of the light source can be designed according to the shape and structure of the product.
Product features: cheap and convenient
Electrical stability, scientific and reasonable circuit design, optical design, and heat dissipation design;
The use of heat sink technology ensures that the LED has an industry-leading thermal lumen maintenance rate (95%).
It is convenient for the secondary optical matching of the product and improves the lighting quality. ；
High color rendering, uniform luminescence, no spot, healthy and environmentally friendly.
The installation is simple and easy to use, which reduces the difficulty of lamp design and saves the cost of lamp processing and subsequent maintenance.
The LED lamp is an electroluminescent semiconductor material chip, which is cured on the bracket with silver glue or white glue, and then connects the chip and the circuit board with a silver wire or gold wire. The surrounding is sealed with epoxy resin to protect the inner core wire. Function, finally install the shell, so the LED lamp has good seismic performance.
