In modern lighting technology, COB light source and traditional LED light source are two widely used lighting solutions. Although they are both based on LED technology, there are significant differences in structure, light efficiency, heat dissipation performance, etc. COB light source (Chip-on-Board) provides higher brightness and better heat dissipation by integrating multiple LED chips on the same substrate. In contrast, traditional LED light sources use dispersed LED packages. Although the cost is lower, they may be inferior to COB light sources in terms of light efficiency and service life. In this article today, we will focus on: What is the difference between COB light source and LED light source?
Different meanings
COB refers to the chip being directly bonded and packaged on the entire substrate, that is, N chips are inherited and integrated together on the inner substrate for packaging; LED lamps are light-emitting diodes, which use solid semiconductor chips as light-emitting materials. Compared with traditional lamps, LED lamps are energy-saving, environmentally friendly, and have good color rendering and response speed.
Different principles
COB light source is a high-efficiency integrated surface light source technology directly attached to a mirror metal substrate with high reflectivity; LED light source integrates computer technology, network communication technology, image processing technology, embedded control technology, etc., so it is a digital information product.
Different light source characteristics
COB light source has high color rendering, uniform light emission, no light spot, healthy and environmentally friendly; LED light source can be used continuously for up to 100,000 hours, and LED light source application in the lighting field in the future is also called mainstream.
Different advantages
COB light source is convenient for secondary optical matching and improves lighting quality; simple installation, easy use, reduces the difficulty of lamp design, saves lamp processing and subsequent maintenance costs; LED light source has low heat, miniaturization, and short response time, which makes LED light source have great advantages and creates favorable conditions for application in actual production and life.
Different LED chips used
COB light source is mainly based on low-power LED chips less than 1 watt, and a very small number of COB light sources will also use high-power LED chips above 1 watt; LED integrated light source generally uses large-size high-power LED chips above 1 watt, and the chip size is generally above 30MIL.
Different brackets are used
The brackets used by COB light sources come in many sizes, including square, rectangular, oval and dozens of other sizes. The material is mainly aluminum, and there are also copper and ceramic brackets, which generally do not have side feet; the brackets used by LED integrated light sources are only 10w, 100w, 500w and other square brackets, which are mainly made of copper, and the brackets all have 2 side feet.
Different areas of use of light sources
COB light sources are mainly used in indoor lamps such as LED downlights, track lights, ceiling lights, etc., and the maximum wattage of a single light source does not exceed 50W; the main purpose of LED integrated light sources is to make outdoor lamps such as LED floodlights and LED street lights, and the maximum wattage of a single light source can reach 500W.
COB light sources and traditional LED light sources have their own advantages and disadvantages. The selection of the appropriate light source type needs to be determined according to the specific application scenario. Dezhen Light Source has advanced incoming inspection and reliability test equipment, and continues to provide customers with reliable LED light source from the digital field, which has been widely recognized by major enterprises in the digital field. Contact us now!