1. The display playback software: including computer software led indoor unit board, as well as to use the LED display to play the big-screen control software, the company will be complimentary installation CD Hefei led unit board, and technical training software operation . 2. steel, labor costs: for fixed installation outdoor LED display screen mounting steel and labor, our company will be fully contracted to complete the installation and commissioning. May also be provided by the Division I free steel sheet, to send technical personnel to guide the installation, the user location when looking for steel producers complete, materials, labor costs can save a lot of installation (recommended). More accurate calculation method LED unit board: length × height using cell plate number plate = total number of units using the number of LED unit board such as: 5 meters long, 2 meters high P16 led monochrome display uses several modules: LED display screen long use cell plate number = 5 meters ÷ 0.256 米 = 19.53125≈20 a LED display high-use unit number plate = 2 meters ÷ 0.128 米 = 15.625≈16 a LED display uses the total number of LED unit board = 20 × 16 a = 320 indoor led unit board, Gao Jin photovoltaic (certified), led unit board provided by Jinan Optoelectronics Technology Co., Ltd. Gao Jin. Jinan Gao Jin Optoelectronics Technology Co., Ltd. (www.zhkyled.com) is an industry leader in Jinan, Shandong, liquid crystal devices, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Gao Jin photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high gold Photoelectric better future.