Ultra low current drawNaviLED lamps use less than 10% of the power required to run a bulb navigation lamp of the same visible distance. Port and Starboard lamps consume less than 2 Watts combined! No bulbs, no maintenance. Ultra long service lifeHella marine LED technology has no filaments to break making NaviLED lamps extremely shock and vibration proof for reliability and safety in demanding conditions. Multivolt 8 - 28VDCAdvanced electronics ensure reliable illumination and lamp protection even under severe voltage fluctuations and low battery voltages. Safe and highly visibleHella marine optics deliver 100% correct light output and enhanced visibility compared to bulb navigation lamps. Fully sealed for life. IP67 certifiedEach NaviLED lamp is a completely sealed unit. High impact housings ensure durability from waves and impact.