APM satisfies High Voltage DC Power Supply application demands, allowing the SP series to cover a voltage range from 0V to 800V. It delivers advanced features. The compact 2U high 19inch wide Adjustable DC Power Supply were designed to meet the needs of both system integrator and bench top users.
Some features of the Switch Mode Power Supply as below:
800V DC Power Supply,Smps Power Supply,Variable Voltage Power Supply,DC Adapter Power Supply APM Technologies (Dongguan) Co., Ltd , https://www.apmpowersupply.com
In 2005, Shanghai Sansi independently developed and manufactured the Oriental Commercial Building curved screen, once known as the "world's first arc", the operation is still perfect for many years. After that, Shanghai Sansi successively made many large curved screens. Until recently, Beijing International Travel P14 outdoor full-color LED curved screen was once again unveiled. The thinking LED display technology has been widely recognized by users around the world. 
Beijing International Travel Service uses a vertical outdoor full-color LED curved screen with an area of ​​347.86m2. It is another large-scale full-color LED curved screen independently developed by Shanghai Sansi. The brightness uniformity error rate between the P14 outdoor full-color LED curved screen pixels and modules is less than 5%, which is done by Shanghai Sansi's unique correction technology. The refreshing frequency of the curved screen is ≥1000Hz, and viewing in various states can ensure that the display has no moiré, water ripple and the like.
This LED curved screen adopts a number of patented technologies to ensure superior display quality and quality. The display life can reach more than 100,000 hours. More importantly, the display has exceeded the limit of continuous working time, and the continuous working time has exceeded the international advanced level. This display achieves <1/10000 at discrete out-of-control points, continuous out-of-control points, and blind spot rates. The protection of this LED curved screen is double-sided protection of the same level, both of which exceed IP65. It has the functions of rainproof, windproof, moisture proof, dustproof, anti-corrosion, anti-electromagnetic interference, anti-static, anti-lightning and so on. , short circuit, over voltage, under voltage and other protection.
Another outstanding feature of this display is the use of Sansi's exclusive cooling system. The maximum temperature of the rear space of the screen does not exceed 50 °C, which makes the display continuous use for a long time and prolongs the service life. This display also uses unique energy-saving technology to obtain energy-saving certification for multi-energy-saving organizations, and is a representative project in environmental protection and energy-saving projects.
Shanghai Sansi carefully designed and manufactured the indoor and outdoor giant arc-shaped full-color LED display, using high-quality international famous brand LED tube as the main light-emitting device, the display angle is large enough to meet the technical requirements of large-angle curved screen, and adopted Unique highlight correction technology. Its considerate and ergonomic design, super-display display control system, vivid and beautiful picture show the international advanced level of display quality.
Beijing Guolv large-scale P14 outdoor full-color LED curved screen once again showed Shanghai Sansi's top LED display technology inside and outside the industry. Shanghai Oriental Commercial Building, which has failed for ten years, witnessed the quality of Sansi products. This LED curved screen also passed the same. The test of time.
Shanghai Sansi is the earliest high-tech enterprise engaged in the R&D and production of LED application products. Since its establishment in 1993, the company has been committed to bringing the highest quality products to its customers, while at the same time, improving after-sales service and improving customer satisfaction as another Long-term strategy. For a long time, Sansi has actively promoted a series of effective after-sales service plans in the service field, and strives to make every customer get the high-end service they expect.
In the future, Shanghai Sansi will continue to adhere to the business philosophy of “Credit First, Quality First, Customer First, Service First†and will continue to use international advanced technology to create high-end LED displays for users. (This article is based on Shanghai Sansi submission) 
Shanghai Sansi curved LED display debut in Beijing International Travel
Recently, Sansi has installed an LED curved screen for Beijing International Travel Service. The whole screen display is clear and bright, and the flatness is excellent. It is completely integrated with the whole building, and it does not look awkward.