The light guide plate is made of transparent material, usually acrylic. Their thickness is usually 2.5mm; 3mm; 4mm; 6mm; 8mm mm, and can be customized according to different application needs. There will be laser dots on the surface of the light guide plate to better reflect and diffuse light. When in use, light sources (such as LEDs) are installed on the edge of the light guide plate to produce uniform light on the entire plate surface through reflection and diffusion.