• Introduction

As one of the main equipment of LED display screen, LED power supply(HS Code: 8504401400),it is playing an important role in LED display screen. Research data shows that more than 80% of fault displays are caused by the power supply. LED display screens are divided into two environments: indoor and outdoor. Today let’s take a look at the relevant technical parameters of the special power supply for LED displays!

  • The main brands of LED power supplies include:

  1. MEAN WELL: Founded in 1982, MEAN WELL is one of the few professional manufacturers in the world whose main business is standard power supplies.MEAN WELL ranks third in the ranking of global power supply (DC output) manufacturers in 2023. Most of the top two power supply manufacturers use ODM/OEM as their main source of revenue.
  2. Powerld enterprises is specialized in switching power supply.Founded in 1991, obtained ISO9001 certificate in 2002, ISO14001 certificate in 2006.As a professional switching power supply manufacturer,Powerld can supply a broad range of power supply such as AC/DC open frame power supplies,AC/DC enclosed power supplies,Din Rail Power Supply, DC/DC Converter…With our more than 29 years experience in switching power supply, they can not only supply our customers with high quality products,but also best service and fast delivery time.
  3. Megmeet: Shenzhen Megmeet Electric Co., Ltd. (stock code: 002851) is a one-stop solution provider for hardware and software R&D, production, sales and service in the field of electrical automation, focusing on power electronics and automatic control. Core technology, business covers power products.
  4. G-energy: Shenzhen G-energy Technology Co., Ltd,which has been established in 2011. It is located in Shenzhen China. It is a company integrating R&D, production and sales, G-energy enterprise has passed ISO9001 quality management system certification, and all products comply with the EU ROHS&WEEE directives. Some products have passed UL, TUV, CCC, and CE certification.
  5. Chuanglian: Chuanglian Power was founded in 2000. It is a provincial-level high-tech enterprise integrating R&D, manufacturing, sales and service.Chuanglian Power is committed to becoming a respected international brand power supplier, with more than 2,000 standard models, providing a full range of power solutions to customers around the world. The products are mainly used in LED displays. Chuanglian Power has a 78,000-square-meter production base, with the manufacturing capacity of 80,000 power supplies per day, and implements a continuously improving comprehensive quality management system with 100% full-process and strict quality control; it is the first to establish It has a standardized (966) EMC laboratory and has the qualifications of witness test L certification and EKRA global certification witness test, ensuring the ultra-high quality of products.
  6. Rongdian: Shenzhen Rongdian Innovation Technology Co., Ltd. has been committed to LED display power supplies since 2006. The company has a complete business system nationwide in the production and sales of various types of power supplies. Meet the various needs of customers in power supply design and production.
  7. South Creative: Shenzhen South Creative Technology Co., Ltd,has been established in 2013. The company has passed IS09001:2015/ISO14001:2015/GB/T19001 2016 quality management system certification, and its products comply with UL, TUV, and CCC , CE, CB, FCC, ROHS, BISDEKRA and other international standards. It is a high-tech enterprise focusing on technology research and development and integrating production, sales and technical services. The various types of LED constant current drive power supplies launched are committed to ultra-high quality, long life, and compliance with international certification and energy efficiency standards. They are widely used in European and American markets and high-end engineering projects at home and abroad. It has two series of products: intelligent dimming driver and conventional driver.

  •  So, how to choose LED display power supply?

  1. First, we confirm which countries and regions the power supply is used in, corresponding to the local voltage, select the appropriate voltage value or wide voltage power supply, waterproof and heat dissipation power supply, and power supply that meets the corresponding certifications, such as CE or UL certification.
  2. Secondly, we confirm what kind of LED display it is used on, and whether it is a hard-connected or soft-connected box. Choosing a power supply that is appropriately sized and looks good will allow for an excellent uniform array of components.
  3. Thirdly, PFC value is also important as efficiency. A power supply without PFC function may have a PF value lower than 0.6. Low PF value increases reactive power and causes huge power losses.
  4. Fourth, check the efficiency of the power supply. Judging the energy saving level of a power supply is based on efficiency. When fully loaded as a good power supply, it must be above 80%. The higher the efficiency, the less active power input.
  5. Fifth, we need to ensure that the power supply has excellent stability, which will affect the stability and working life of the LED display. It can be represented by ripple and temperature rise. A power supply with good stability must have low ripple and low temperature rise.

  • Summary

The CPU is to the brain of the device, just like the Power Supply is to the heart of the device. With the continuous advancement of technology and the continuous evolution of the market, LED display power supply technology will also usher in broader development prospects. From efficient and low-consumption power supply design, to intelligent and modular system solutions, to the widespread application of green and environmentally friendly materials, every technological innovation will inject new vitality into the LED display industry.