China’s lighting market, the capacity is huge, in 2015, including lighting, lamps and light sources, market output value can reach 500 billion YUAN. In the view of the person in charge of photoelectric enterprises, the current LED terminal price continues to decline, profits also shrink, and create intelligent lighting is a new growth point of the industry. Industry insiders roughly estimate that “in the next few years, the market size of China’s LED light source will break through $100 billion. At present, the penetration rate of the domestic intelligent lighting market is less than 2%, and the product application is mainly reflected in the future dimmable LED intelligent home lighting, intelligent road lighting, intelligent corridor lighting, intelligent underground garage lighting, intelligent lighting in public areas and other markets will greatly expand.

Common-Cathode CC 3014AGG 7-Segment digit 3014AGG LED Common-Anode CA 3014BGG Display 3014BGG 0.30 inch
Common-Cathode CC 3104AW 7-Segment digit 3104AW LED Common-Anode CA 3104BW Display 3104BW 0.30 inch

The warm and soft light of incandescent lamp has left many warm memories for people. But now most of our families no longer use incandescent light bulbs, instead of LED lights, a 3-watt LED light brightness is equivalent to a 25-watt incandescent light bulb, and LED light color has been very close to natural white light, of course, you can also choose warm white light. Compared with incandescent lamp and fluorescent lamp, LED light can be more obvious, the color is more natural.

Common-Cathode CC 3392AB LED 3392AB 0.39 inch Common-Anode CA 3392BB 7-Segment 3392BB Display

The end near the “side” of the triangle symbol is positive, and the end near the “Angle” is usually negative pole. By observing the printed lines of the patch LED lamp board, we can quickly judge, from top view, the side with colored lines is negative pole, and the other side is usually positive pole. By observing the size of the LED patch or LED pad, the larger end of the pad is negative pole, and the smaller end of the pad is usually positive pole.

Common-Cathode CC 5202AS LED 5202AS 0.50 inch Common-Anode CA 5202BS 7-Segment 5202BS Display

It is found that the LED sampling circuit design is unreasonable, and the current sampling waveform has a positive hybrid peak. Moreover, the power output voltage fluctuation value reaches 11.2V, that is, each LED chip will add an average of about 0.62V fluctuating voltage, resulting in the voltage of a single LED chip exceeding the design value of 3.20V, which may lead to the LED chip working in the case of overpower, which will further worsen the use of the lamp bead.

LED 8402AW 7-Segment 8402AW 0.80-inch 8402BW Display 8402BW

The unit price of 1W white LED
Home applications of LED lighting
12V and 24V LED lamp application
LED lighting power supply system is complex
Chinese lighting market is huge
Color and brightness of LED in different occasions
Leds Luminous Intensity Unit is Candela
LED luminous flux in unit of Lumen
LED Luminance refers to the light intensity density
The color rendering of LED may be different