What does the neon field in the bar mean?

Bar neon field refers to the rainbow phenomenon in the internal light and external atmosphere of the bar. This phenomenon usually occurs in rainy days or after the sun shines on water droplets, because water droplets in the atmosphere refract and scatter colorful light to form rainbows. In the bar, colorful neon lights can also generate orange-red light through weak DC or alternating current, further enhancing the atmosphere of the bar.