Which is better, cob down light or smd down light?

Cob (Chip-on-board) means that the chips are directly bound and packaged on all substrates, that is, N chips are inherited together on the inner substrate for packaging. It is mainly used to solve the problem of making high-power LED lights with low-power chips, which can dissipate heat dissipation of chips, improve light efficiency, and improve the glare effect of LED lights. Cob has high luminous flux density, less glare and soft light, and emits a uniformly distributed smooth surface.

smd (Surface Mounted Devices), led ? smd means surface mounted light-emitting diodes, with a large light-emitting point of view, up to 120-160 degrees, compared to the previous plug-in package, effective, good precision, low soldering rate, light weight, Small size and other advantages.

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How to choose the downlight material:

1. Generally, the size of household downlights is no more than 2.5 inches, and 5W energy-saving lamps are enough.

2. LED downlights are only available in modern times and can be used as a substitute for ordinary downlights. The light is better than usual. The only defect is that if 1 or 2 light points are broken, they cannot be replaced.

3. There are also many kinds of downlight cover materials, such as iron surface, pure aluminum, die-casting and other materials. Generally speaking, the downlight with iron surface

The price, pure aluminum and die-casting materials are relatively expensive, but they are more durable. In engineering, iron-surfaced downlights are used in comparison, but it is recommended that downlights for home improvement use a surface cover that is not easy to rust.

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The lamp holder of the downlight is the most important part of the comparison, and the main raw material of the lamp holder is ceramics. The reed inside is the most important, there are two kinds of copper and aluminum, good brands use aluminum to make, and there is a spring under the touch point, which can enhance the touch. The other is the power cord of the lamp holder. A good brand is to use a three-wire connection lamp holder (three wires are the front, the zero wire, and the ground wire), and some will bring a terminal block. This is also a very fundamental way to distinguish a good brand from a normal brand.

There are usually two kinds of reflectors: sand cups and light cups. The material is aluminum, the aluminum will not change color, and the reflectivity is better. Some small manufacturers will use plastic spray to do it. This new technology looks excellent, but it will become dark or even black after a period of time. The identification method is to look at the regularity of the incision. The incision of aluminum is very regular, and the spraying is the opposite.

About the comprehensive content of Cob Downlight and Smd Downlight and how to choose the material of downlight, I will tell you so much today. In this regard, it is still necessary to remind everyone that cob downlights and smd downlights are two different concepts, so if you put cob downlights and smd downlights together, it is really difficult to evaluate which downlight is better. Therefore, we still choose according to our own needs, which will be more direct and appropriate.

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