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Ordinary LED lights have 2 pins. Why do these LED lights have 4 pins?

Ordinary light-emitting diodes (LED lights) only have two pins, one long pin and one short pin. Connect the long leg to the positive pole of the power supply, and the short leg to the negative pole of the power supply. Besides this ordinary LED light with only two pins, can you take a look at any LED lights with 4 pins?
Although there are four pins inside, there are actually three LED beads, one of which is the common part of the three LEDs, and the other three are the second pin of each LED. LED lights also have a common cathode and a common anode. For a common anode RGB LED light, the longest of the four pins is the anode, which is the positive pole connected to the power supply.
If the red lead contacts the anode of the common anode RGB LED light, and the black lead contacts any of the other three pins. If the LED light is normal, you will also see that the LED light is on and it will be on the multimeter. The voltage drop displayed at this time is no different from the LED light that measured normally.

The heat of LED lights is very low. Why do automobile LED lamps have Computer fan?

Detailed explanation of the three main heat dissipation methods for LED lights

2023-07-11

New Borui GE has finally arrived. The strength he has demonstrated can be said to be particularly strong. Not only that, it also has quite mature configurations. Regardless of which version, Borui GE has a good performance, so overall, the competitiveness of this car is still acceptable, and in terms of price, it is also known as the "people-friendly" new dark horse.

Jetta VS5 configuration exposure: a total of 5 models/standard LED light groups

2023-07-11

Recently, we obtained the configuration information of the Jetta VS5 model under the FAW Volkswagen Jetta Jetta brand from relevant channels. The new car is positioned as a compact SUV and will launch five models, namely 280TSI Manual Fashion, 280TSI Automatic Fashion, 280TSI Manual Comfort, 280TSI Automatic Comfort, and 280TSI Automatic Luxury. According to the information released this time, in terms of external configuration, the new car will be equipped with LED headlights/tail lights, roof luggage rack, 17 inch wheels, etc. The high-end models will also be equipped with automatic headlights, 18 inch wheels, electric sunroof, and welcome lighting.

Development of LED lights

2023-07-11

Congratulations! Our product has finally lit up the airport and national exhibition center

2023-07-11

Philips Professional Lighting recently successfully provided high-quality LED lighting solutions for the first phase of the National Exhibition and Convention Center (Tianjin). Help build a new generation of green, intelligent and innovative national convention and exhibition complexes. As one of Philips' suppliers, Jin Dingsheng provided 20,755 meters of 15*15 top view switch 4000K extruded silicone IP66 neon in this project. From June 6th to 24th, the new hall of the National Exhibition and Convention Center (Tianjin) ushered in the first exhibition.