See with your eyes and touch with your hands. Eyes to see if there are bubbles in the colloid of the light bar and whether the color of the light bar is uniform. Touch it with your hands to see if the surface of the light bar is smooth and flat. In this way, we can basically know the quality of glue dripping on the light bar.
Shenzhen Chuangmingyu Optoelectronic Co., Ltd. only makes light bars.