Ultra low current draw Power consumption is less than 2 watts (<0.17 A @ 12V). No bulbs, No maintenance, Ultra long service life Hella marine LED technology has no filaments to break making NaviLED®PRO lamps extremely shock and vibration proof for proven 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. Fully sealed for life. IP 67 certified Each NaviLED®PRO lamp is a completely sealed unit. High impact housings ensure durability from waves and impact. Ultra heavy duty BSH versions use high-tech Grilamid® lens to offer superior strength in extreme conditions.