The interior light billboard is commonly known as the outdoor light box. The materials of the spray painting are different, and the built-in light tube, so that the picture of the billboard during the day and night is very clear. Good light transmittance, uniform, relatively high brightness.

Blister character is a kind of acrylic processing technology. The main principle is that after the flat acrylic material is heated and softened, it is adsorbed on the surface of the mold by vacuum, cooled and shaped, and LED lights are installed. The energy consumption is much lower than the neon lights, and the luminous effect is obvious at night.