LightArmor plug-in light bases is designed for premium performance and durability. Base features a threaded design that fits perfectly with the threaded locking collar offered across the entire line of Attwood pole lights. This unique system ensures a tight and secure fit and eliminates annoying rattling sounds while underway or trailering. Unique cover design ensures that the cover stays in place, while the low profile prevents water from pooling on the top surface. Black composite construction withstands use in marine environments.