Coastal Source landscape light fixtures are made completely of brass. Right down to the nuts, bolts and stake. Coastal Source landscape light fixtures are 100% sealed to keep out moisture, corrosion, debris and bugs. Light bulbs eventually burn out and have to be replaced. The typical landscape light is so corroded within a matter of months that it cannot be opened. Not only do you need a new light bulb, you need an entirely new fixture. Not anymore.