Structural knowledge of LED panel lights
It was once predicted that the lamps of the future would have no specific shape, that the lamps of the future would become part of the building, something you could not easily identify at a glance. The LED panel light, some people say, is a major performance of lighting in this field at this stage.
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. They have become the best way to replace traditional grid 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: The strength of the frame affects the durability: the frame is an important part of the panel light, and the frame with high strength 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 current frame materials of flat 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 diffuse 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 effect: the function of the light guide plate is to refract the light parallel to the direction of the light transmission plate into the direction perpendicular to the light transmission plate, and the light guide plate is refracted by the reflective paper to the light on the back of the flat lamp reflect again. 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, high efficiency: LED lights have two driving power supply modes, one is constant current power supply, this mode has high efficiency, PF value is as high as 0.95, cost-effective; the other is constant voltage with constant current power supply , the performance is stable, but the efficiency is low and the cost is high.
The above is the structure introduction of LED panel light. LED panel light has gradually become the best product to replace the traditional grille light panel in the LED era due to its characteristics of good illumination uniformity, higher CRI, uniform and soft light, and comfort. There will be more and more room for development in schools and other areas of indoor lighting.
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