Size of the effective matrix 2560 mm. x 640mm. Resolution 256x64 pixels with red, green, blue or yellow (the last three colors are more expensive by 10%. Built-in clock, date, year. Multilingual text, built-in effects, own USB memory port. Use indoors or outdoors, high brightness and readability even in direct sunlight Base module size: 320mm.x160mm Possibility to upgrade after purchase with extended warranty Optionally we offer a thermometer, humidity sensor, information update by radio, GPRS, WIFI, COM PORT (RS232) THE IMAGE MAY BE OF ANOTHER SIZE, BUT OF THE SAME TYPE OF LED INFORMATION BOARD OF STRATUS LIGHT LTD