Lumitec Contour Anchor Light - 20" - Black Shaft/White Base [101645]Contour Anchor Light 20" Black Shaft White Base The design says it all, unobtrusive, durable, reliable with striking good looks. The Contour Anchor Light has the slimmest profile in the industry, a retractable locking base with a small footprint, a simple 2 wire hookup, and is constructed from durable composite plastic to reduce weight. U. S. Coast Guard approved for 2 nautical miles.