Purification lights (LED clean lights) are classified from the structure of LED panel lights. There are mainly two types of LED purification panel lights: one is a direct-emitting clean light, and the other is a side-emitting purification light. Which is better, direct-emitting clean panel light or side-emitting purification panel light?
1. The luminous efficiency of the direct light-emitting clean panel light is higher than that of the side light-emitting clean panel light: the light emitted by the LED chip of the direct light-emitting LED clean light is directly emitted through the diffusion plate, and is not absorbed and reflected by other media, so the light The utilization rate of the panel light is relatively high, and the overall light efficiency of the panel light is relatively high. The light of the side-emitting purification lamp needs to be refracted by the light guide plate first, so there will be a certain loss of light efficiency.
2. The direct-emitting purification panel lamp saves the cost of the light guide plate: the light guide plate is one of the core components of the side-emitting purification panel lamp, which directly affects the optical characteristics of the LED purification lamp: high light transmittance and uniform brightness value.The quality of the light guide plate is affected by many factors, such as the base material of the light guide plate, reasonable dot pitch design, printing ink quality and reflective film. Its design and production costs are high and account for a large portion of the total panel light product cost. However, the direct-emitting LED purification lamp does not need a light guide plate, so the corresponding cost is saved.
3. Compared with the side-emitting clean panel light, the direct light-emitting purification panel light is lighter in weight: because the direct light-emitting purification panel light has no light guide plate, the overall weight of the lamp is greatly reduced, transportation costs can be saved, and the installation of the LED purification light is also reduced. load requirements of the structure.
4. Longer service life of the direct-emitting LED purification lamp: the light guide plate, one of the core components of the side-emitting LED purification lamp, is more prone to life problems, while the direct-emitting clean flat panel lamp without a light guide plate has a relatively longer service life Some.Because the screen printing ink and reflective film of the light guide plate are in a high temperature working environment for a long time, there will be natural aging and yellowing characteristics, resulting in low light refraction efficiency, resulting in low luminous efficiency, thereby reducing the overall life of the lamp.
5. The side-emitting LED purification light is thinner and more beautiful than the direct-emitting LED purification flat light. Although the direct-emitting LED purification lamp has many advantages, its thickness cannot be controlled. Basically, the thickness of the direct-emitting LED purification lamp is about 45mm, while the thickness of the side-emitting LED panel purification lamp can be less than 9mm. In contrast, the direct-emitting LED panel cleaning lamp is very bulky.
Although the direct-emitting LED clean light has quite a few advantages, it has been eliminated in the market now, and basically no one is using it. At present, in the domestic market, purification projects and hospital operating rooms basically use side-emitting LED purification panel lights.
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