An outdoor unit board, using high-quality high-precision modular PCB board led, circuit board with A-level panel led module plant, the smallest line copper thickness 35-44um, the hole wall copper thickness 18-35nm, to ensure that the use of fever process without interrupting short circuit phenomenon 2, using a one-time injection of high-quality mask, ink evenly led module, flatness, corrosion resistance. completely eliminate the large screen when the video is not lit front side. 3, Highlight a large chip with high quality 3535 SMD lamps, consistency, and to ensure that it does not highlight the big screen video. 4, independent of the resistance and with voltage protection circuit board to ensure the unit will not be reversed completely burnt overvoltage. Common problem full-color LED unit board: Q: Is not the high brightness of the screen increasingly better? How should we determine the brightness of the screen? A: No, the screen brightness is higher, the higher the price. Dazzling brightness too high, uncomfortable. To decide the brightness of the screen according to the brightness of the environment. Fluorescent lighting is not required for day environment, we recommend using a semi-outdoor unit board 1/16 sweep is sufficient. If it is the main road to the west, no one around the tree, very bright during the day, use 1/8 sweep. led module board, high Jinliang photovoltaic (certified), led module provided by the Jinan High Jinliang Optoelectronics Technology Co., Ltd .. Jinan High Jinliang Optoelectronics Technology Co., Ltd. (www.zhkyled.com) is an industry leader in Jinan, Shandong, liquid crystal device, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In high Jinliang photoelectric leadership with the staff warmly welcome all inquiries negotiations to create high Jinliang photoelectric a better future.