LED panel light structure and application field
It was once predicted that the lamps of the future will have no specific shape, and the lamps of the future will become part of the building, which you cannot easily identify at a glance. The panel light, some people say, is a major performance of lighting in this field at this stage.
Application field
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. best product.
product structure
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 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: Different materials have different light transmittances
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 percent , that of PC is 88 percent , and that of PS is about 80 percent . 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 the direction perpendicular to the light-transmitting plate, and the light guide plate is refracted to the back of the panel lamp by the reflective paper. reflected. 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 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, and the cost performance is high; the other is constant voltage with constant current power supply, The performance is stable, but the efficiency is low and the cost is high.
product category
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, convenient installation and transportation, etc. The disadvantage is that it is easy to emit unevenly; the advantages of the direct-lit panel light are sufficient brightness and cost control. The disadvantage is that glare is inevitable, dark areas, and the lamp body It is heavy, and it is relatively inconvenient to transport and install.
The price of the side-emitting LED panel light is more expensive than that of the direct type, because the technology of the side-emitting LED panel light is relatively complicated, which is determined by the product structure of the side-emitting LED panel. Both are complicated, which makes it difficult to control product yield and product uniformity.
Product advantages
LED panel lamps have a very soft lighting method. The side lighting method is commonly used at present. The light emitted from the surface of the lamp body is very uniform, so that the light emitted is not dazzling at all. Used in various fields, it can effectively eliminate glare.
LED panel lights have gradually become the best product to replace traditional grille light panels in the LED era due to their good uniformity of illumination, higher CRI, uniform and soft light, and comfort. They will be used in schools, hospitals, hotels, offices and other indoor lighting fields There will be more and more room for development. .
