We will provide the following 3D models: - LED strip - Custom PC tube, consisting of two connected standard tubes Simulation scenarios: - Bare LED strip - LED strip + standard tube: (i) ID 18 mm, OD 21 mm (ii) ID 29 mm, OD 32 mm - LED strip + two standard tubes (ID 18 mm, OD 21 mm and ID 29 mm, OD 32 mm) - LED strip + custom PC tube Deliverables: - Uniformity profile along the tube for all simulation scenarios - Zemax project file