Two Color LED Indicator Light Product Introduction
The mounting hole of this two color led indicator light is 8mm, which is a popular two color led indicator light in our company. The color can be red and green, red and blue, blue and green, and other two colors need to be customized. , You can send us your needs and quantity, and we will provide a plan for your reference.
Generally, the voltage of this two color led indicator light can be 3~380v, but generally 12v 24v 220v is more conventional, and it can be used in drinking fountains, coffee machines, water heaters, subway indicator lights, power chargers and other equipment.
The reason why the two color led indicator light emits two colors is that two chips are used, both of which are packaged in the same bracket.
How does the two color led indicator light control its luminous color? Generally, it is a two-color light with three legs and a two-color light with two legs. The three-leg two-color lamp also has a common yin and a common yang. The length of the three legs is different. The difference between the common yin and the yang is mainly based on the positive and negative poles of the longest foot in the middle. If the middle leg is positive , Is the common yang; if it is the negative electrode, it is the common negative. Electric current generally flows in from the positive electrode and flows out from the negative electrode.
Two-pin non-polar two color led indicator light, which is to encapsulate two color chips in one LED. Of course, the two chips must be connected in parallel with opposite polarities. In this case, the positive and negative poles of the power supply at both ends are added. The two-color control can be realized by the difference. In fact, it should be three-color. If you add AC, it will be another color. The forward power will emit one light, and the reverse power will emit another light. For example: according to the red and green two-color LED you said, mark its two pins as A and B. If the voltage you apply to it is A positive and B negative, it will light up in red, and in turn you give it If the applied voltage is B positive and A negative, it will be bright green. In fact, this LED has another color, that is, it can be combined into yellow when it is on at the same time. Two-color lights can be used as indicator lights on power supplies and chargers. Most of the power supplies use red and green (common green) dual-color lights. They can also be used on subways to indicate stations (from red to green, and from red to green). Green turns red).
The two color led indicator light we currently make has three lines, such as red and green two color led indicator light, it has three lines, one line is common cathode or common anode, generally black, and the other two lines correspond to the color of the light. , We will use red wires for red and green wires for green lights. The length of the wire is 20cm, and the wire is AWG22 or AWG24. It depends on your specific requirements.
If you have any needs for two color led indicator light, please email us [email protected]. If you have any questions or ideas about two color led indicator light, you can also contact our engineer louis Lin. His email is [email protected]
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