The 20-inch globe is our largest standard size. It serves highway departments, large commercial developments, and stadium or event venue perimeter lighting. These globes require strong mounting hardware because of their size. We recommend polycarbonate for nearly all 20" applications due to wind load and impact considerations. Acrylic is available if your project specifically calls for it.
Standard neck sizes for 20" globes are 8" and 10" fitter necks. Contact us for custom sizing.
Materials and Common Uses
We manufacture 20" globes in both acrylic and polycarbonate. Acrylic offers better light diffusion and a clean appearance. Polycarbonate is the tougher option, rated for higher impact resistance, which matters in areas with storms, falling branches, or vandalism risk. Both materials are UV-stabilized to resist yellowing over years of sun exposure.
Common uses for the 20" size include the largest commercial and municipal post-top installations, highway lighting, and stadium perimeter fixtures. If you are not sure which diameter fits your fixture, our sizing guide walks you through measuring your post housing and neck opening. You can also browse our full lamp post globes and acorns collection to compare sizes side by side, or check our accessories for fitter necks and mounting hardware.
