Knowledge of LED panel lights
LED panel lights are widely used in offices, schools, hospitals, shopping malls, homes and other places for their characteristics of good uniformity of illumination, higher CRI, uniform and soft light, and comfort, becoming the best way to replace traditional grille light panels in the LED era best product.
The structure of LED panel light mainly includes frame, diffuser plate, light guide plate, lamp beads, driving power supply, aluminum substrate and other components.
1. Frame: Frame strength affects durability
The frame is an important part of the panel light, and the high-strength frame makes the panel light more durable. The side frame of the LED panel light is made of different materials, and its heat dissipation performance is also different. According to statistics, the frame materials of the current panel lights mainly include aluminum alloy, steel, PC, A6063, aluminum-plastic, steel and other materials.
2. Diffuser plate: different materials have different light transmittance
The function of the diffuser plate is to evenly disperse the light of the light guide plate, and it can also play the role of blurring the dots. The materials used are mainly acrylic, PC, PS, etc.
It is understood that the light transmittance of acrylic is 92%, that of PC is 88%, and that of PS is about 80%. The light transmittance of acrylic material is higher than that of PC, and the cost is lower, and its anti-aging performance is weak. But the anti-aging performance is strong.
3. Light guide plate: The plate has a great influence on the light efficiency
The function of the light guide plate is to refract the light parallel to the direction of the light-transmitting plate into a direction perpendicular to the light-transmitting plate. In this process, it is also necessary to reduce the light decay as much as possible. Generally speaking, the light efficiency of the light guide plate depends largely on the design of the dots, followed by the choice of the plate.
4. Power supply: constant current power supply mode with high efficiency
The LED lamp has two driving power modes, one is a constant current power supply, which has high efficiency and a PF value of up to 0.95, which is cost-effective; the other is a constant voltage and constant current power supply, with stable performance, but low efficiency and high cost.
There are two types of LED panel lights: direct-lit and side-lit.
The side-emitting panel light has the advantages of light weight and thin body, easy installation and transportation, etc. The disadvantage is that it is easy to emit uneven light; the advantages of the direct-lit panel light are sufficient brightness and cost control, but the disadvantage is that glare is inevitable, there are dark areas, and the lamp body Heavy, relatively inconvenient to transport and install.
The price of the side-emitting LED panel light is higher than that of the direct type, because the technology of the side-emitting LED panel light is relatively complex, which is determined by the product structure of the side-emitting LED panel. Both are complex, which makes it difficult to control product yield and product uniformity.
Benwei Lighting is an LED Tube, LED flood light, LED Panel Light, LED High Bay, LED manufacturer with 12 years of experience. If you want to purchase a high-quality LED flood light or have a more in-depth understanding of the application of LED flood lights, please contact send us inquiry， our web: 
https://www.benweilight.com/.
