Vista Professional Outdoor Lighting GR-2116-CSN-4.5-W-36 6-1/8" Copper & Brass Ground Mount Bullet 4.5W this low voltage up & accent fixture is constructed of heavy-gauge, extruded, solid copper. The fully rotatable shroud is fitted with a silicone o-ring gasket to ensure a superior weather-tight seal under harsh conditions. A clear or frosted convex glass lens safeguards the lamp and optics. The intelligently engineered fully adjustable knuckle is made from solid brass and isolates the fixture from the harmful corrosive soil.