Guide: LED strips are assembled on a strip-shaped FPC (flexible circuit board) or PCB hard board, and the name of the product is named like a tape. Because of its long service life (generally normal life of 8 to 100,000 hours), it is very energy-efficient and environmentally friendly and has gradually emerged in various decorative industries. The following small series introduces what classification of LED lights and maintenance of LED lights.
What is the classification of LED lights:
LED light strips are generally divided into flexible LED strips and LED hard strips, but generally also include old-fashioned strips that use LEDs to connect LEDs, such as flat three-wire 4.3W/m, flat four-wire 6.48W/m, flat five-wire. 8.64W / meter light belt and so on.
1. The flexible LED strip is assembled by FPC and assembled with SMD LED, so that the thickness of the product is only the thickness of one coin, which does not occupy space; the general specification is 30cm long, 18 LEDs, 24 LEDs and 50cm long 15 LEDs, 24 LEDs, 30 LEDs, etc. There are also 60cm, 80cm, etc., different users have different specifications. And the flexible LED light strip can be cut at will, or can be arbitrarily extended without being affected. The FPC material is soft and can be bent, folded and wound freely, and can be moved and stretched in three dimensions without breaking. The flexible LED strip is suitable for use in irregular places and small spaces, and because it can be bent and wound arbitrarily, it is suitable for arbitrarily combining various patterns in advertising decoration.
2. LED hard light strips are assembled with PCB hard boards. LEDs are assembled with patch LEDs. They are also assembled with in-line LEDs. Different components are used depending on the needs. The advantage of the LED light bar is that it is relatively easy to fix, and it is convenient to process and install; the disadvantage is that it cannot be bent freely and is not suitable for irregular places. There are 18 LEDs, 24 LEDs, 30 LEDs, 36 LEDs, 40 LEDs, etc. for the LED strips of hard light strips. There are 18, 24, 36, 48 LEDs with in-line LEDs. Different specifications, there are front and side, and the side light is also called the Great Wall light bar.
LED lamp belt maintenance instructions:
1. Anti-static: Since the LED is a static and slow component, if the anti-static measures are not taken when the LED light strip is being repaired, the LED light strip will be burned out, which will result in a cost. It should be noted that the soldering iron must use anti-static soldering iron, and the same training personnel must also take anti-static measures (such as wearing anti-static ring and anti-static gloves, etc.).
2, the continuation of low temperature: the two main groups of LED light strips for adult LED and FPC, are not able to continue the low temperature resistant goods. If the FPC is continuing to cool down or exceeds its acceptance measurement, it will crack the FPC cover film and indirectly form the LED light strip to be scrapped. At the same time, the LED has not been able to withstand the low temperature, and it is going to be cold for a long time, and its chip will be burned at a low temperature. Therefore, the electric soldering iron adopted when training LED strips must adopt a temperature-controlled soldering iron to limit the measurement to a degree, to stop arbitrary changes and settings. In addition, even so, it is also necessary to pay attention to the electric iron in the training. It is not necessary to stop the LED pin for more than 10 seconds. If it exceeds a certain time, it will burn out the LED chip.
3, short circuit: Many LED lights are not bright because there is a short circuit at the foot, before the training is sure to investigate the real no bright cause. Otherwise, after rushing to change the LED that is not bright, the chip that continues to form the LED will be broken by the short-circuit direct current when it is returned again. Because, in the process of changing the new LED in advance, we must first find the real reason for not bright, and some of the ability to do things.
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