Lopolight Series 301-011 - Double Stacked Masthead Light - 5NM - Horizontal Mount - White - Silver Housing

The Lopolight Series 301-011 Double Stacked Masthead Light is a dual-output navigation light engineered for vessels requiring both white and all-around visibility in compliance with USCG and international maritime regulations. This 5-nautical-mile rated masthead light combines two light sources in a single horizontal-mount housing, eliminating the need for separate fixtures while maintaining the compact, elegant design Lopolight is known for since 2004.

The double-stacked configuration delivers consistent visibility across the 5NM range, critical for nighttime navigation and collision avoidance on open water. The silver housing provides corrosion resistance in saltwater environments, a practical necessity for offshore and coastal boating where salt spray accelerates degradation of standard finishes. At 3.05 lbs with compact dimensions of 6 x 4 x 8 inches, the 301-011 mounts cleanly to mast or hardtop without the weight penalty or visual clutter of dual separate units. The horizontal orientation allows for direct masthead installation where space or structural considerations limit vertical clearance.

This light suits cruising sailboats, fishing vessels, and motorsailers where dependable nighttime identification is essential. Weekend boaters and serious offshore anglers both benefit from the straightforward installation and proven Lopolight reliability. The Series 301-011 integrates into existing navigation systems without requiring complex wiring or modifications, making it a practical upgrade for vessels needing dual white coverage without mounting complications.

Lopolight's navigation light lineup emphasizes precision engineering and compact form factors across all vessel sizes. The double-stacked design represents an intelligent solution to the real-world challenge of fitting navigation equipment on boats where mast real estate is limited and weight budget matters.