Coastal Grade

This Coastal Grade Lighting Guide from Lighting Collective breaks down how to choose exterior lights that can withstand the harsh Australian coastal elements. Because prevailing winds can carry corrosive salt up to 5km inland, selecting the right materials is crucial for ensuring your outdoor fixtures survive high humidity, sea spray, and relentless sun.

Here are the best materials for coastal-grade lighting:

• Solid Brass and Copper: These metals are classic, highly resilient choices. Instead of rusting, they develop a natural patina (or verdigris for copper) that acts as a protective shield against deep corrosion.
• Concrete: Offering a raw, brutalist aesthetic, concrete is an inert material that will not degrade under UV radiation or salt spray, making it indestructible.
• 316 Marine Grade Stainless Steel: Unlike standard steel, this marine-grade option contains molybdenum to block rust and pitting, maintaining a sleek, modern look (with regular freshwater rinses).
• Powder-Coated Aluminium: Premium die-cast aluminium treated with a UV-stabilised powder coating seals out moisture, offering a lightweight, cost-effective, and contemporary solution.
• Other Durable Options: High-quality glass, UV-stabilised polycarbonates, galvanised steel, and advanced PVD coatings are also excellent choices for resisting rust, rot, and scratching in salty environments.

Always consult your electrician to ensure your chosen materials and IP ratings are suited for your specific location.