Ultra-low power consumption. Port, starboard and stern lights combined consume less than 3.2 watts, with no bulbs, no maintenance and long life. The LED technology developed by Hella marine has no filaments that can break, making NaviLED PRO lights extremely resistant to shock and vibration and therefore more reliable even in the harshest conditions.Multivolt 9-33V DCChighly advanced electronic technology protects the light and ensures constant illumination in very unstable current situations or when the battery voltage is low.Sealed for life. Each NaviLED PRO light is completely waterproof. Their robust casing gives them superior resistance to impacts and waves. BSH-certified versions are even tougher and use Grilamid in the lens composition, an even more durable material for use in the most extreme conditions.Pre-wired with 2.5 m of marine grade 2-core cableMarine grade 2-core cable is used on all our lights to ensure quick and completely waterproof installation.