Maintenance Engineering Ltd., Decorative Lamps are made with a Nitrogen Argon, or Krypton gas fill to reduce lamp blackening and boosts whiteness of light. Our decorative lamps are made with a pure tungsten filament, which is held in place by multiple filament supports. These features extend the lamps life and can save up to 12% in energy costs. The strong multiple filament supports will resist shock and vibration, extending the lamps life. Maintenance Engineering's well known Nickel/Brass base was selected, since it resists corrosion and freezing in the socket. By using Maintenance Engineering's decorative lamps you can avoid common problems, such as short life, lamp blackening, and poor quality associated with standard lamps.