GW LEDS Corp. is the professional designer and manufacturer for the indoor bi-color sign, which can show the texts, numbers, symbols, patterns, images and animators. If they are connected with to DVD, cameras, televisions or other video signal sources, they can display the video images with red, green and their mixture color, but without blue. It is the most important modern displaying equipment in many public place for advertisements, news, stock exchange information and so on. Type:?.75mm Dot Pitch:4.75mm Pixel Density 44100 dots/Square meter Max Power:less than or equals to 800 Watt/Square meter Pixel Configuration: High brightness red and green Gray LeveLl:1024 gray levels for images Display Content: Texts, numbers, patterns, images or video signals Control Methods :Controlled by the computer Input Type: VGA, PC, Scanner, Video Signal Sources and etc Control Distance: For cable, the distance: less than or equals to 120m With fiber, no limited Scan Frequency 60 Hz View Angle:?5? Operation Temperature: -15 癈 to 55 癈 Lift Time over 100,000 hours Input Voltage: 220V?5%, 110V?5%