They can be used for large 3D scanning elements, for example, video detection, and digital detection. The 3.9mm LED display can be used for indoor and outdoor events, as they as large 3D scanning elements, and for intricate designs.
Buy a range of 3.9mm LED screen and 3.9mm LED boards for your customers to choose from. This might because if you are looking for a large number of LEDs, the 3.9mm LED board is the right choice for your business. It might be a good idea to stock a large number of LEDs in a range of colors and sizes to cater to all customer needs.