You can bevel a light’s 3D model without SketchUp using tools like Blender, Fusion 360, or Tinkercad—all have bevel, chamfer, or fillet features to smooth sharp edges.
In Blender, use the Bevel modifier on selected edges; in Fusion 360, apply the Chamfer tool to edges; in Tinkercad, subtract a small cylinder from a model’s corner for a basic bevel.
If new, start with Tinkercad’s drag-and-drop (subtract a cylinder from edges) or watch a short Blender tutorial for precise control over bevel width and smoothness.