Q:What problems should we pay attention to in high-power LED Cap lenses?

Product inspection: no bubbles, no sag, no shrinkage mark, no rhyolite, no crescent shape accuracy; the surface roughness of Rt<0.005 Ra<0.0002.

Q:How to judge the quality of high power LED patch LED?

1, for the same material, the tube core, due to different impurities doped, the color of the light is also different2, LED belongs to the current control device, the VF varies with the IF, the standard VF value is for reference only

Q:What are the manufacturers of high power LED driver IC in China?

Wuxi Huarun semico Co. Ltd and Shenzhen city Mattel core technology Co. Ltd., Shenzhen Reston Semiconductor Lighting Co. Ltd., Shenzhen City Granville Electronics Ltd., Shenzhen Shi Lianyu Xin Technology Co. ltd.,

Q:What's the color of the red, yellow, blue, and green bands of a high power LED? Please explain separately

Whether high-power or patch or direct line, other LED packaging products, the band is regular:For example, the red band between 620-640nm, the greater the value, the more red, the smaller the value, the more significant carmoisine.Yellow band between 580-595nm, the greater the value, the more red, the smaller the value, the more green.The green band is between 500-540nm, and the larger the value, the more green yellow, and the smaller the value, the more pronounced Turquoise blue.The blue band is between 440-470nm, and the bigger the value, the more green it is. The smaller the value, the more purple it becomes.

Q:Can high power LED projection light change light color?

The color of LED is emitted by the LED chip. If it is a RGB lamp, it can be adjusted by the control circuit. If it is a white LED lamp, LED lamp replacement is the best color change.

Q:Why not drive LED high power COB lamp?

The relationship between high power LED band and color

Q:Advantages and disadvantages of high power LED

The design process required for standard LED arrays is much simpler than that due to the need to consider greatly simplifying thermal management, and therefore relative to the design process required for high-power technologies. In our theoretical example, the 1W LED requires 350mA current, while the six standard LED arrays require only 120mA current. Large power technologies require the use of heat sinks and metal core PCB panels to ensure efficient loss, reduced service life, or fading due to excessive junction temperature.

Q:What are the research purposes and significance of high-power LED lamps?

High power LED lamps are one of the LED energy-saving lamps. Compared with the low-power LED energy-saving lamps, the high-power LED energy-saving lamps have higher power, brighter brightness and higher price.

Q:What is the junction temperature of high power LED?

In the calculation of heat dissipation of general power devices (such as power IC), as long as the junction temperature is less than the maximum allowable junction temperature (usually 125 degrees Celsius). But in the heat dissipation design of high-power LED, its junction temperature TJ requirement is much lower than 125 centigrade.

Q:20W integrated high-power LED how to heat

According to design standards, the use of sufficient area of heat dissipation. Red copper is good, aluminum can also be.