01 monochrome LED lamp bead

Whether it is red LED lamp beads, or green LED lamp beads, white LED lamp beads, or blue LED lamp beads, they can emit only one color.

Monochrome LED lamp bead

LED lamp beads that can only emit only one color are called monochrome LED lamp beads. Its driving circuit is relatively simple, and it can drive directly with a triode or MOS tube.

02 Two -color LED lamp beads

Compared with monochrome LED lamp beads, two -color LED lamp beads, there are two colors that can emit light, such as common blue and green, red and blue, red and green, and so on.

Of course, their color combinations can be customized in accordance with the requirements of the project.

For its driving circuit, it needs to be treated differently.

Double -color two -color LED

If it is a dual -polaric two -color LED, its driving circuit can be used to do two different colors of LED processing like monochrome LED; at the same time, it can also be connected in parallel with PIN1 and PIN3, PIN2 and PIN4 parallel, and treat it as one as one LED processing;

It can emit a color of light at a certain moment, but also emit two different colors of light at the same time. But in any case, the current flow of the dual -polaric two -color LED is the same, all from right to left.

Single polar two -color LED

If it is a single -polar dual -color LED, its drive circuit is completely different.

Although there are two LEDs inside, two different colors of light can be emitted, but because it is reversed in parallel relationship, it can only emit a color of light at the same time, which means Light of color.

What is the use of this two -color LED?

For example, engineers can use red and green double -colored LEDs to detect the current flow of AC power. If the current is from left to right, it will emit red light; if it is from right to left, it will emit green light.

In this way, we can judge the flow of the current through the color of the LED light, which is just one of the applications.

03 Three -in -one LED Lighting Ball

Three -in -one LED lamp bead, as the name suggests, can emit three colors of light, commonly is the RGB red and green blue combination.

Three -in -one LED

In essence, it can also be seen as three independent LED lights. Just according to the internal circuit structure, it can be divided into common anode and common cathode.

CPC theoder three -in -one LED

The CPC anode triple -in -one LED is connected to the three -color LED anode inside.

Communist Catalion Three -in -One LED

The Junchen three -in -one LED is connected to the three -color LED cathode of the internal RGB.

The driving circuit of the three -in -one LED light is similar to the monochrome LED. The engineer should not think it is complicated.

04 Four -in -One LED Lighting Ball

Four -in -one LED, it can emit four colors of RGBW, red, blue and white.

Four -in -one LED

Its encapsulation shape is similar to the SO-8 packaging of the chip. There are 8 pad pad pads, and each two pins correspond to an internal LED light core.