THE RIGHT SOLUTION: 18" Globe Lamp Cover with 8"OD Fitter Neck Opening for outdoor post lights. Measure twice before ordering. Restock fee applies to wrong size returns. Contact us for help. ITEM SPECIFICS: Item Number 20018-WH-8F | White | Acrylic | Smooth Textured | Fitter Neck | Lamp Post Globe (NOT for ceiling fan replacements) WEATHERPROOF: Acrylic lamp posts outdoor lighting covers are UV resistant, withstand up to 194°F, and offer 92% transmittance. One-piece injection blow-molded. LONG-LASTING: KASTLITE lamp post light fixture globes are water-resistant, and UV-protected to prevent yellowing, perfect for year round lights for house outdoor use. LEADERS IN LIGHTING & PLASTIC SOLUTIONS: KASTLITE, a leading brand serving all 50 states, proudly manufactures post light covers in the USA. We look forward to serving you! KASTLITE 18" globe lamp covers are the ideal solution for pole lights outdoor, available with 5.25" neckless or 8" fitter neck openings. Made from UV-resistant acrylic, these light fixture cover replacements are weatherproof and offer 92% light transmittance. Designed to withstand temperatures up to 194°F, they provide long-lasting performance for year-round outdoor use. Available in smooth or prismatic textures, and clear, smoke, or white finishes, each light pole globe is crafted through a one-piece injection blow-molding process. Upgrade your outdoor light poles with KASTLITE. Proudly made in the USA, KASTLITE is a trusted leader in lighting solutions across all 50 states.