DW-304C is a multifunctional embedded swinging spot light. The design of advocates “completeness and emphasizes” on the type of lighting. The cut-off angle design is more than 30° can effectively avoid glares and provide a visual comfort. Moreover, this spot light is also a basic illumination model for horizontal illumination. The luminaire can be horizontally rotated 355°, upward up to 30° and downward up to 45° for the projection of a specific object. By using the same light fixture, three different projection types can be obtained, allowing the ceiling to be viewed with uniformity and neatness. The thermal cooling system ensures the LED lifespan at least 40,000 hour even more. This integrated design is what we mean by “Art of Light.”