Cob desk lamp, cob light source or led light source?

The choice of desk lamps is often ignored, because we think that all desk lamps are similar as long as they can meet the lighting needs. But in fact, high-quality desk lamps should also have humanized design, such as supporting eye protection mode, which can save the human body, even if reading for a long time will not be too tired. So what reliable table lamps are there on the market? Cob desk lamp is recommended in Bian Xiao today, which can provide more comfortable lighting effect than traditional desk lamp.

1. Which is better, cob light source or led light source?

The traditional LED is mainly used: "LED light source discrete device →MCPCB light source module →LED lamps", because there is no ready-made suitable core light source component, which is not only labor-consuming and time-consuming, but also costly.

Packaging "COB light source module →LED lamp" can directly package multiple chips on the metal-based printed circuit board MCPCB, and directly dissipate heat through the substrate, thus saving the primary packaging cost of LED, the manufacturing cost of light engine module and the secondary light distribution cost. In terms of performance, through reasonable design and microlens molding, COB light source module can effectively avoid the disadvantages of point light and glare when discrete light source devices are combined. It is also possible to effectively improve the color rendering of the light source without obviously reducing the efficiency and life of the light source by adding an appropriate combination of red chips.

Second, cob desk lamp?

COB chip on board (chip? Open? Board,? COB) technology is to cover the silicon wafer placement point with thermal conductive epoxy resin (generally epoxy resin doped with silver particles) on the surface of the substrate, then directly place the silicon wafer on the surface of the substrate, heat treat until the silicon wafer is firmly fixed on the substrate, and then directly establish the electrical connection between the silicon wafer and the substrate through wire bonding.

COB light source is an integrated surface light source technology with high light efficiency, in which the LED chip is directly attached to the mirror metal substrate with high reflectivity. This technology cancels the concept of bracket, and there is no electroplating, reflow soldering and mounting process, so the process is reduced by nearly one third and the cost is also saved by one third.

Three. Main products of Cob light source

There are two main forms of bare chip technology: one is COB technology, and the other is flip chip technology. Chip). chip on board package (COB), in which a semiconductor chip is attached to a printed circuit board, and the electrical connection between the chip and the substrate is realized by wire stitching and covered with resin to ensure reliability.

Cob desk lamp illustrated above is a more advanced and popular desk lamp product. Different from ordinary incandescent lamps, cob desk lamp has the advantage of humanization, that is, eye protection mode, so it can support users to read for a long time without causing too much harm to their eyes. In addition, according to the above comparative analysis, we can also find the excellent performance of cob desk lamp and LED bulb, so Bian Xiao suggested that friends who are interested in buying desk lamps can consider this product.

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