led Power supply is playing an important role to the quality of a led display, but how to choose suitable power supply for led display? The answer is on www.optokingdom.com.

Three points for selecting power supply:

1. Application environment conditions: temperature, humidity, sand and dust, installation method.

2. Electrical application condition: lightning protection, PF value, loading voltage, safety grounding wire.

1. Environment: power supply should have wide working temperature range, good humidity performance and high protection level and so on.

2. Input voltage: to make sure normal output, the power supply should have wide input voltage so that it can be used well in both high voltage condition and low voltage condition.

3. Power factor and conversion efficiency: the higher power factor the better for power supply because higher power factor is good for improve the utilization rate of power grid, so as the conversion efficiency does because it can improve the effective power utilization rate and reduce the subsequent cost.

4. Voltage stable accuracy: power supply should have good voltage characteristic to ensure no voltage fluctuation when it is under light load and heavy load conditions.

5. Material grade: select international real-name brand components can prolong the service life of the power supply.