First, look at the appearance of the process to select LED display power. A good power supply manufacturers, the process is also very strict, because this can ensure product consistency. An irresponsible manufacturer, the production of power of its appearance, tin surface, the alignment of components will never be good.
Second, from full load efficiency to select LED display power supply. The efficiency of the power supply is one of the most important indicators, high efficiency of power conversion rate, which is not only attached to the requirements of energy-saving and environmental protection, but also real can save money for users.
Third, the output voltage ripple of constant voltage power supply is large. The size of the ripple has a great effect on the life of the electric equipment, the smaller the ripple the better.
Four, observe the power supply when the temperature rise to select LED display power supply. Temperature rise affects the stability and life of the power supply, the lower the temperature rises the better. In addition, it can be seen from the efficiency, the general efficiency of high temperature rise will be small.
Five, because of the properties of LED display products, in the play video or screen will usually produce instantaneous changes in the current, which led to a more stringent power supply requirements.
Sixth,In order to increase the life of the power supply, it is recommended to use 30% output power rating machine
Senventh, according to the application field to select the functions of power supply, such as protection function: over-voltage protection, over temperature protection, over load protection, etc.
