The innovative arc lock realizes rapid arc splicing, and the splicing speed is 90% higher than traditional rental products. The independently designed system box is suitable for outdoor service of the front service LED module. The splicing can be used in creative shape LED video walls, which improves the work efficiency by 80% compared with traditional rental products. Protective devices are installed at the corners of the box at the same time, reducing the probability of the installation workers damaging the lamp beads during the installation process. Effectively reduce customers' transportation and installation costs, and create greater business value for customers. Its professional and practical functions and excellent visual appeal promote the development of the LED industry.