The light source of the light box is LED or T4 tube, and T4 tube is fluorescent tube. LED has uniform brightness and high cost, while fluorescent tubes are cheap, but the light source is not very uniform. If it is a large light box, it needs metal frame support. Shops often ask for sign light boxes and ask what kind of light source is suitable. Generally speaking, if the requirements are not high, you can directly use ordinary fluorescent tubes as light sources. If LED light source is used, you need to use the flat light source module type. If you choose to be an LED light box, you need to pay attention to such problems: First, pay attention to waterproof; Second, prevent the temperature from being too high and the working current of the LED from being too large (it is best to control the current of each LED within 20MA). From the design point of view, it depends on whether the style is retro or popular, whether it is in tune with the theme, whether it is beautiful, and whether it can play the role of advertising. A professional design team must be found for a light box with novel and beautiful design. For example, Shenzhen Bessel Corporate Image Planning Co., Ltd. has many years of rich professional experience in light box design and production, and can design and produce advertising light boxes with various styles and materials according to the specific requirements of customers. At present, the more popular types of light box advertisements on the market are rolling light boxes, crystal light boxes and plastic light boxes. Acrylic is the most common material and its production cost is low, so it is widely used.