Lithonia Lighting 1-1/3 ft. x 4 ft. Dropped White Acrylic Diffuser D15SBDDROP - The Home Depot
Polycarbonate Film Light Diffusing, Film, Clear, Makrofol® LM 309, Gloss / Matte, Light Diffusing Grade, Case of 25, (0.012 in x 24.5 in x 48.5 in) | Curbell Plastics