Requirements For The Selection Of Light Sources For LED Luminous Characters

Requirements for the selection of light sources for LED luminous characters

LED can save a lot of electricity for the country and users, and save a lot of man-hours for the contractor. The development of LED application technology has added new vitality to the highly competitive advertising industry. Its unique and different lighting patterns are widely used in the production of advertising products. LEDs of different specifications have different light-emitting angles and different brightness.

So, how to choose the right LED for different products, so that it can maximize the effect and reduce the cost to the greatest extent? Application of LED in luminous characters and precautions for use Three-dimensional luminous characters mainly have the following requirements for the light source:

1. The complexity of LED luminous fonts and the different specifications of different projects require the light source to have versatility that is not limited by fonts;

2. Since the maintenance of the installed LED luminous characters is extremely inconvenient, in order to reduce the maintenance cost, the light source is required to have a longer life;

3. LED luminous characters must have sufficient brightness

It is worth noting that in the process of using LED light-emitting modules for LED luminous characters, we must pay attention to the problem of voltage drop. Don't just make one loop, from the beginning to the end. Doing so will not only cause inconsistent brightness between the head and the tail due to different voltages, but also cause the problem of burning the circuit board due to excessive single-channel current. The correct way is to connect as many circuits in parallel as possible to ensure a reasonable distribution of voltage and current. In addition, if you need to use anti-corrosion materials inside the character cavity, it is best to use white primer to increase its reflection coefficient.

As a semiconductor light source, white LEDs consume only about 20% of the power of traditional lighting sources. The service life is as long as 100,000 hours, dozens of times that of ordinary lamps. It has good reliability and low maintenance cost. The use voltage is low, and the working voltage is generally below 5V. In addition to the LCD backlight of portable machines, it can also be used for field lighting, remote mountain lighting, miner's lights and water environment lighting. The switching time is short, and the response time can reach as low as 1 microsecond, and the response time of general lamps is several milliseconds (the response time of the current light source is 200 milliseconds). Environmental protection, no mercury and other harmful waste, strong and not easy to break, reducing waste pollution to the environment. LED lights do not contain infrared and ultraviolet components, no radiation pollution, and DC drive, no stroboscopic, is an environmentally friendly light source to protect eyesight. With the widespread use and performance improvement of LEDs, it has become a consensus that a new lighting revolution is coming, so what will this expected change bring to people: this is the most concerned about developing LED application products and guiding market development The problem.