With less than 1.5 Watts of consumption, HELLA Marine 0520 Series NaviLED Compact LED Navigation Lamps draw a fraction of the energy required to run a conventional 2 nautical mile incandescent lamp. HELLA Marine LED technology has no filaments to break thus making the lamps extremely shock, vibration and impact resistant and completely maintenance free. High impact acrylic housings provide superior durability in demanding conditions. HELLA Marine NaviLED Compact Series Lamps have undergone extensive 'tested to destruction' programs to help lift product reliability to a new standard. Each lamp is a completely sealed and waterproof unit, UV and corrosion resistant. Utilizing HELLA Marine's advanced Multivolt circuitry, NaviLED Compact Series Lamps provide consistent illumination and safety from 8-28 Volts DC, even under severe voltage fluctuations and low battery voltages. Sealed within the base, the compact HELLA Marine Multivolt drive circuitry provides reverse polarity, spike and over-voltage protection for long life and reliable operation.