These are two lighting solutions applied by panel light.
Back-Lit LED Panel Light:
Back lit ceiling panel light works with the LED light sources at the back of the panel. The light will project light forward across the full scope of the light panel from the front. For back lit LED panel light, LEDs can be placed over a large area to illuminate a light panel. Such LED modules is flexible, user-friendly, and easy-to-repair.
Edge-Lit LED Panel Light:
edge lit LED panel lights are constructed with aluminum frame and light panel. It uses high efficiency PMMA light guide plates and nano-grade diffusers, which makes it optically energy efficient in lighting. Moreover, since LEDs used in edge lit panel light are placed at the edges, light is not straight-forward but re-directed to the viewing surface, thus makes light output smooth and soft. And compared to back lit panel light, edge lit LED panel light is thinner.
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