First, the light efficiency is high. The light emitted by the direct-type LED panel light is directly irradiated by the diffuser plate, and does not need to pass through the light guide plate, which improves the light efficiency of the lamp.
Second, the cost is low. The cost of the light guide plate is omitted, the cost of the lamp is reduced, the internal space is larger, and the design is more flexible.
Third, the lamps are light. Because the light guide plate is omitted, the quality of the lamp is reduced.
Fourth, high reliability. In the design of lamps, the performance of each component and the materials used will determine the overall performance of the lamp product. The more components in the lamp, the lower the reliability.
Moreover, the light guide plate and reflective film of the side-entry panel light will always be exposed to high temperature, which is easy to age and turn yellow, which affects the light output efficiency and service life.