A 4-1/2" AMBER SEALED BEAM NON-FLUTED refers to a type of Harley Davidson lighting component that is commonly used in older Viclas. This component is a type of headlight that is designed with a 4-1/2 inch diameter and a sealed beam that prevents moisture and debris from entering the light housing.
The term "amber" refers to the color of the lens or reflector, which is often used in foggy or low-light conditions to improve visibility. Amber-colored lights are also sometimes used for aesthetic reasons, as they can provide a vintage or retro look to a Vicla.
The term "non-fluted" refers to the shape of the lens or reflector. A non-fluted design means that the lens or reflector is smooth, without any ridges or grooves. This type of design is often used to create a more uniform and focused beam of light, which can improve visibility on the road.
Overall, a 4-1/2" AMBER SEALED BEAM NON-FLUTED is a specialized type of Harley Davidson lighting component that can provide improved visibility and a unique look to older Viclas.