Lopolight Series301-009 - Double Stacked Port Sidelight - 2NM - Horizontal Mount - Red - Silver Housing

The Lopolight Series 301-009 Double Stacked Port Sidelight is a marine navigation light engineered for vessels requiring reliable, compact red sidelighting with a 2-nautical-mile visibility range. Built by Lopolight, a manufacturer specializing in yacht and boat navigation lighting since 2004, this horizontally mounted unit combines proven optical design with a durable silver housing to meet the lighting demands of both recreational boaters and serious offshore cruisers.

The double-stacked configuration delivers consistent red signal output across the required arc while maintaining the compact profile that modern boat designs demand. The 2NM range specification ensures visibility in standard operating conditions, meeting international navigation light standards for vessels in its class. The silver housing resists corrosion in salt air environments—a critical consideration for coastal and offshore use where aluminum and stainless construction endure constant exposure to marine atmospheres. Horizontal mounting orientation allows flexible installation on port-side rails, bulwarks, or custom brackets without requiring specialized adapters.

This sidelight suits boat owners upgrading aging incandescent systems or installing navigation lights on new-build vessels. Weekend fishermen operating in twilight or night conditions benefit from the reliable red output for collision avoidance, while serious cruisers planning offshore passages depend on USCG and COLREG-compliant lighting systems. The Series 301-009 integrates into complete navigation light packages where port and starboard coverage is essential for safe operation under reduced visibility.

Lopolight's modular approach to marine lighting allows this port sidelight to pair with matching starboard units and masthead configurations, creating a cohesive navigation lighting system without redundant housing styles or mismatched color temperatures.