The OKY3522 is a 60x60mm LED display module manufactured by OKYSTAR. It has a red colour display and runs on a 3VDC power supply. The module can be used for a variety of purposes, such as displaying text or images, or for signal displays. It features a thin and flat design, with a low power consumption and high brightness. It is also lightweight and easy to install. It offers high contrast and wide viewing angle with no colour shift. It is suitable for applications such as indoor light boxes, digital signage, street lighting, and outdoor advertising.