In recent years, the panel LED lamp has slowly moved towards schools and various indoor lighting places. Today, we will have an in-depth understanding of the panel lamp LED.
It has been predicted that the lamp in the future will have no specific shape since it will become part of the building that cannot be easily identified at a glance. However, some people say the panel LED lamp is a major performance in the field of lighting.
The structure of the panel lamp LED mainly includes components such as a frame, a diffuser plate, a light guide plate, a lamp bead, a driving power supply, and an aluminum substrate.
(1) Frame: Frame strength affects the durability
The frame is an important part of the panel LED lamp, and a high-strength frame makes the panel LED lamp more durable. The side frame of the panel LED lamp uses different materials, and the heat dissipation performance is also different. According to statistics, the current frame materials of the panel LED lamp mainly include aluminum alloy, steel, PC, A6063, aluminum and other materials.
(2) Diffusion plate: Different materials have a different light transmittance
The role of the diffuser plate is to evenly diffuse the light of the light guide plate, and can also play the role of blurring the dots. Its materials are mainly acrylic, PC, PS, etc.
It is understood that the light transmittance of acrylic is 92%, PC is 88%, and PS is around 80%. Acrylic material has higher light transmittance than PC, and it has a lower cost and weak anti-aging performance. However, PC material is expensive and has strong anti-aging performance.
(3) 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-transmitting plate into a direction perpendicular to the light-transmitting plate, and the light on the back of the panel LED lamp is reflected by the reflective paper. In this process, light attenuation should be reduced as much as possible. In general, the light effect of the light guide plate depends largely on the dot design, followed by the choice of the plate.
(4) Power supply: The constant current power mode has high efficiency
The LED lamp has two driving power modes. The constant current power supply has high efficiency and a PF value of up to 0.95, which is cost-effective. The constant voltage with a constant current power supply has stable performance, but it has low efficiency and high cost.
The panel lamp LED has the characteristics such as good uniformity of illumination, high color rendering index, uniform and soft light, and comfort. Therefore, it is widely used in offices, schools, hospitals, shopping malls, homes and other places. It has become the most popular alternative to the traditional grille lamp panel in the LED era.
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