It is aluminum that has undergone an anodizing process to enhance its natural oxide layer, providing superior protection against corrosion and wear.
The term "marine-grade" indicates that the aluminum alloy is specifically designed to withstand the harsh conditions of marine environments, including exposure to saltwater and coastal weather. These alloys often include elements such as magnesium and silicon, which significantly boost their corrosion and wear resistance.
When an outdoor light is exposed to the environment 24/7, using marine-grade anodized aluminum is necessary to prevent the fixture's body from deteriorating and failing under harsh climate conditions.
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