The reasons why LED backlight strips doesn't work

Sometimes the light spot will appear in the advertising & signage light box. When you open the canvas, you will find that there are several LED chips on the LED backlight strip are not working. At the beginning of installation, there is no such phenomenon, while, after a period of use, several LED chips on the LED backlight strip does not work. This is what people call dead lamp phenomenon. So, what are the reasons for the LED backlight strip do not working?

1. The quality of the LED chips and the bracket material used in the LED chips are the direct reasons for the failure.

The use of poor quality LED chips will greatly increase the probability of LED backlight strip not working. The LED chips are composed of a variety of materials, such as bracket, chip, gold wire, glue and so on. If any of these materials is unstable, it may cause the LED chips to die.

2. A LED chip or line on the series parallel circuit board is disconnected, and no current passes through, which resulting in the LED backlight strip not working.

Due to the low working voltage of LED chips, they are generally connected in series and parallel to adapt to different working voltages. The more LED lights in series, the greater in impact. As long as one of the LED chips or the internal wiring of one part of the circuit is disconnected, the whole series of LED backlight strips will not work in final.

3. The wrong wiring causes the LED backlight strips burn out.

If you don't know the wiring methods of LED backlight strips, directly connecting to 220 V will lead to LED chips burning. At this time, you need to replace a new light strip. Therefore, we should carefully understand the specific parameters of the LED backlight strips before wiring. For those who don't know how to operate, consult the professional technicians of the light strips manufacturer in time to avoid unnecessary losses. If the light strip only doesn't work, it may be cause by the power supply is out of power, the positive and negative poles are connected reversely, the wrong line is connected, etc. In this case, we need check it and then connect the light bar to operate normally.

4. In the process of packaging, transportation and installation which caused the LED chips are not bright.

In the packaging, transportation and installation of LED backlight strip, all kinds of physical injuries may cause LED chips damage, resulting in dead lamp, affecting the whole section of LED backlight strip.

If you want to know more details of LED backlight strip, please contact Dongguan Diguang Lighting Technology Co., Ltd. The email info@dgdiguang.com, welcome to consult.