Ultra low current draw NaviLED® 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 life Hella marine LED technology has no filaments to break making NaviLED® lamps extremely shock and vibration proof for reliability and safety in demanding conditions. MultivoltTM 9-33V DC Advanced electronics ensure reliable illumination and lamp protection even under severe voltage fluctuations and low battery voltages. Safe and highly visible Hella marine optics deliver 100% correct light output and enhanced visibility compared to bulb navigation lamps.