PRO 5nm Masthead Heavy Duty Lens - Black - ShroudUltra durable, power saving LED navigation lamps for enhanced safety.NaviLEDPRO lamps are proven worldwide on commercial, military and recreational vessels.Ultra low current draw5 NM masthead lamp consumes only 4W (No bulbs, No maintenance, Ultra long service lifeHella marine LED technology has no filaments to break making NaviLEDPRO lamps extremely shock and vibration proof for proven reliability and safety in demanding conditions.Multivolt 9-33V DCAdvanced electronics ensure reliable illumination and lamp protection even under severe voltage fluctuations and low battery voltages.Fully sealed for life. IP 67 certifiedEach NaviLEDPRO lamp is a completely sealed unit. High impact housings ensure durability from waves and impact. Ultra heavy duty Grilamid lens to offer superior strength in extreme conditions.Pre-wired with 2.5m of twin core marine cableHigh quality cable assemblies for time saving, completely sealed installations.