LED panel lamp structure
LED panel lamp is a high-end indoor lighting lamp of Yimei. Its outer frame is made of aluminum alloy through anodic oxidation, and the light source is led. The whole lamp design is beautiful, simple, atmospheric and luxurious, which not only has good lighting effect, but also gives people a beautiful feeling. The LED panel lamp has a unique design. After the light passes through the light guide plate with high transmittance, it forms a uniform planar luminous effect. It has good uniformity of illumination, soft and comfortable light without losing brightness, which can effectively alleviate eye fatigue.
1. Rear cover plate of LED panel lamp
This rear cover plate is mainly used to seal the lamp body. It is made of metal aluminum. Visually, it has a strong overall texture. Because it is made of aluminum, it can also play the role of heat dissipation.
2. LED light source for LED panel lamp
Many LED panel lamp manufacturers basically use SMD3528 in the use of LED light sources.
3. Frame: frame strength affects durability frame is an important part of panel lamp, and a frame with high strength can make panel lamp more durable. The frame of the LED panel lamp uses different materials, and its heat dissipation performance is also different.
4. Diffusion plate: the diffusion plate with different transmittance of different materials is used to evenly disperse the light refracted by the light guide plate, and also to blur the dot. The materials used for diffusion plate mainly include acrylic, PC, PS, etc.
It is understood that the transmittance of acrylic material is 92%, that of PC is 88%, and that of PS is about 80%. The transmittance of acrylic material is higher than that of PC and the cost is lower, but its anti-aging performance is weak; PC materials are expensive, but have strong anti-aging properties.
5. Light guide plate: the plate has a great influence on the light effect. The role 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 refracted from the light guide plate to the back of the panel lamp is reflected by the reflective paper. In this process, light attenuation should be reduced as much as possible. Generally speaking, the light efficiency of the light guide plate depends largely on the design of the scattering dot, followed by the selection of the plate.
6. Power supply: constant current power supply mode has high efficiency. Lamps usually use two driving power supply modes. One is the constant current power supply with overvoltage protection only provided with current control loop. This mode has high efficiency, PF value can be as high as 0.95, and high cost performance; The other is a voltage limited constant current power supply provided with two control loops of current and voltage, which has stable performance,
7. Reflective paper of LED panel lamp
In the components of LED panel lights, the main purpose of reflective paper is to reflect the residual light on the back of the light guide plate, and its importance is also a component of high-quality LED panel lights, which can not be omitted.
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/.
