First, look at the appearance of the process to choose LED display power. A good power supply manufacturers, the work process is also very strict, because in order to protect the bulk of the product consistency.
Second, from the full load efficiency to select the LED display power. Power efficiency is the most important one indicator, high efficiency of the power conversion rate of energy is high, so that both the requirements of energy saving and environmental protection, but also can really save money for the user to save money.
Third, the output voltage of the constant voltage power supply is large. The size of the ripple on the life of electrical equipment has a very big impact, the smaller the better ripple.
Fourth, observe the power supply when the temperature rise to select the LED display power. Temperature rise affect the stability of the power supply and life, the lower the temperature rise the better temperature rise. Also from the efficiency can also be seen, the general efficiency of high temperature rise will be small.
Fifth, due to the LED display product properties, in the broadcast video or picture usually produce instantaneous changes in current, which on the LED power supply made more stringent requirements. Usually, in order to ensure the normal display of the screen, you need to set aside a certain amount of power supply products. In general sense, the more reserved margin, the more stable the performance of power products, the longer life.