How To Select LED Flat Panel

How to select LED flat panel or identify the quality

1. The overall "power factor of lighting": If the power factor is low, it means that the driving power supply and circuit design are not good, which will greatly reduce the service life of lighting! If the power factor is low, no matter how good the lamp bead is used, the service life of lighting will not be long. The power factor can be detected by "power factor meter". Generally, the power factor of LED flat panel lamp for export is required to be above 0.85. If the power factor is lower than 0.5, it should be said that unqualified products or garbage products not only have short service life, but also the actual power consumption is about twice as high as the nominal value, that is to say, compared with ordinary energy-saving lamps, there is no power saving at all! Therefore, this is why LED flat panel lamps need to be equipped with high-quality and high-efficiency driving power supply! There is no "power factor meter" to detect the LED lighting function Rate factor consumers, there is another way is to use the "ammeter" to detect two similar products with the same nominal power, the greater the current and the greater the current harmonic, indicating that the actual power consumption is greater, the less energy-saving! At the same time, the current instability is not conducive to the life of the lamp bead and the life of the overall lighting!

2. Lighting cooling conditions -- materials and structure: LED lighting cooling is also very important. If the lighting with the same power factor and the same quality of lamp beads are not well cooled, the lamp beads will work at high temperature, the light decay will be great, and the lamp life will be reduced. The main heat dissipation materials used are copper, aluminum and PC. The heat conduction of copper is better than that of aluminum, and the heat conduction of aluminum is better than that of PC. now, the most commonly used heat sink material is aluminum, the best one is insert aluminum, the second is car aluminum (aluminum profile, extrusion aluminum), the worst one is cast aluminum, and insert aluminum has the best heat dissipation effect!

3. The lamp quality: Lamp quality depends on chip quality and packaging technology.

The quality of the chip determines the brightness and decay of the lamp bead. A good lamp has not only a high luminous flux, but also a low luminous decay.

4. The driving power used in lighting, the service life of the power supply is much shorter than that of other parts of the lighting. The service life of the power supply affects the overall service life of the lighting. The theoretical service life of the lamp bead is 50,000-100,000 hours, while the service life of the power supply is 20,000-30,000 hours. The design and material selection of the power supply will determine the service life of the power supply. The appearance of aluminum alloy power drive is better than that of engineering plastics. First, it has good heat dissipation. Second, it can effectively protect the parts from being crushed and loose during transportation and use, and reduce the failure rate of power drive.

5. The light efficiency: The same power, the higher the light efficiency, the higher the brightness. If the same lighting brightness, the smaller the power consumption, the more energy saving.

6. The power efficiency. The higher the power efficiency is, the better it is. It shows that the smaller the power consumption is, the greater the output power is.