This case focuses on the customized production of a single non-standard sand table spotlight, professionally developed for high-end real estate sales office sand table display lighting scenarios. The sand table model has extremely high requirements for light focusing, border definition, anti-reflection and light uniformity. Standard commercial spotlights have fixed beam angles, serious light scattering, unavoidable model surface reflection and single color temperature, which easily cause blurred building outlines, local overexposure and weakened display grade.