How to Choose Outdoor Lighting That Lasts: IP Ratings Explained

Most outdoor lighting failures are not design failures. They are specification failures. The right fixture in the wrong location — a lamp rated for sheltered spaces installed in a fully exposed wall, or a coastal property fitted with standard aluminum instead of marine-grade materials — deteriorates rapidly and needs replacing within a season or two.

Getting outdoor lighting right means understanding two things before style or price: IP ratings and materials. Get both correct and a fixture will last a decade or more without issue. Get either wrong and you are replacing it far sooner than you should.

Nordalight engineers its outdoor wall sconces for real outdoor conditions. Here is exactly what you need to know before buying.

What IP Ratings Actually Mean

IP stands for Ingress Protection. It is an international standard that classifies how well a fixture resists penetration by solid particles and water. Every outdoor lighting fixture should carry an IP rating — if a product does not display one, treat it as unrated and unsuitable for outdoor use.

The rating consists of two digits. The first digit indicates protection against solid particles such as dust and debris. The second digit indicates protection against water. Higher numbers mean greater protection on each scale.

First digit — solid particle protection: 0 — No protection 1 to 5 — Varying degrees of partial protection 6 — Fully dust-tight. No ingress of dust under any conditions.

For outdoor fixtures, a first digit of 4 or above is the minimum. A rating of 6 — fully dust-tight — is the standard for quality outdoor lighting intended for long service life.

Second digit — water protection: 0 — No protection 1 — Dripping water (vertically falling only) 2 — Dripping water at up to 15 degrees from vertical 3 — Spraying water up to 60 degrees from vertical 4 — Splashing water from any direction 5 — Low-pressure water jets from any direction 6 — Powerful water jets from any direction 7 — Temporary immersion up to 30 minutes at 1 metre depth 8 — Continuous immersion beyond 1 metre

For residential outdoor wall sconces, the second digit is the number that matters most for matching the fixture to its specific location.

Which IP Rating for Which Location

IP44 — covered and semi-sheltered locations The minimum practical rating for outdoor use. IP44 means the fixture is protected against solid objects larger than 1mm and against water splashing from any direction. Suitable for covered porches with a full overhang, sheltered balconies, and locations where the fixture itself is not directly exposed to rain — where an architectural feature above redirects water away from the fixture.

IP44 is not suitable for exposed walls, unsheltered front doors, or any location where the fixture takes direct rain. The "weatherproof" label used in marketing frequently refers to IP44 — it is not waterproof in any meaningful sense.

IP54 — semi-exposed locations Dust-protected and splash-resistant. Appropriate for balconies with partial shelter, covered patios that occasionally take wind-driven rain, and semi-exposed side walls. A step up from IP44 in practical water resistance.

IP65 — exposed outdoor locations The standard for quality residential outdoor lighting in exposed positions. Fully dust-tight and protected against low-pressure water jets from any direction. IP65 handles rain, wind-driven spray, and hosing down without moisture penetration.

IP65 is the right choice for front door flanking sconces on exposed walls, garage wall fixtures, unsheltered pathway lighting, and any outdoor fixture that will take direct weather. For most residential outdoor lighting in standard climates, IP65 is the target specification.

IP67 and IP68 — extreme and coastal environments IP67 handles temporary immersion up to 30 minutes at 1 metre depth. IP68 handles continuous submersion beyond that. These ratings are necessary for pool surrounds, water features, and coastal properties where salt spray and extreme humidity create corrosion conditions that go beyond what standard waterproofing addresses.

Note that IP ratings do not measure corrosion resistance. A fixture can be IP67-rated and still corrode rapidly in a coastal salt-air environment if the housing material is inadequate. For coastal applications, the material specification matters as much as the IP number.

A Critical Warning: IP Ratings Do Not Measure the Whole Fixture

This is the detail most product descriptions omit. An IP rating applies to the sealed enclosure of the fixture — but a fixture is not just its housing. The cable entry point, the connector, the mounting hardware, and any external switches or controls all have their own exposure levels.

A fixture rated IP65 can fail through water ingress at a poorly sealed cable gland, a loose connector, or a mounting point where water pools and penetrates around the fixings. When installing an outdoor fixture, ensure:

The cable entry is properly sealed with a rated cable gland. The mounting position does not allow water to pool at the fixture base. The fixture is oriented as specified — some are rated for a particular mounting direction and will ingest water if rotated. All fixings are stainless steel or corrosion-resistant — standard steel screws rust and allow moisture pathways even through an otherwise sealed fixture.

Materials: What Lasts and What Does Not

IP rating tells you about the seal. Material tells you about the housing itself — how it ages under UV exposure, temperature cycling, humidity, and in coastal environments, salt air. Getting both right is what separates a fixture that looks good after ten years from one that looks degraded after two.

Powder-coated aluminum The most common outdoor fixture material. Lightweight, corrosion-resistant when the coating is intact, and available in virtually every finish. A quality powder coat on aluminum withstands normal outdoor conditions well. The vulnerability is the coating — chips and scratches expose the underlying metal, which can corrode if the aluminum alloy is not marine grade. For standard residential climates, powder-coated aluminum with a quality finish is entirely appropriate.

Solid brass The premium choice for outdoor lighting, particularly in coastal and high-humidity environments. Brass is naturally corrosion-resistant and develops a beautiful natural patina over time rather than degrading. It is significantly heavier than aluminum and more expensive, but for a fixture that needs to perform in salt air or extreme humidity for a decade or more, solid brass is the right investment.

Stainless steel Excellent corrosion resistance and a clean, contemporary aesthetic. Marine-grade stainless (316 grade) is required for coastal environments — standard 304 grade stainless can show rust staining in salt-air conditions despite its name. Stainless fixtures tend to be heavier and more expensive than aluminum, with outstanding longevity in harsh conditions.

Cast iron Traditional in character and very durable when properly finished. Cast iron requires a protective coating — paint or powder coat — to prevent rusting. The coating integrity determines the fixture's outdoor longevity. High-quality cast iron fixtures with proper finishing perform well in sheltered outdoor positions. Less suitable for exposed coastal applications.

Zinc alloy and cheap die-cast Common in budget outdoor fixtures. Acceptable in sheltered positions but degrades faster than aluminum or brass in exposed conditions, particularly under UV and temperature cycling. The coating often fails within a few years, exposing the alloy to oxidation. Avoid for any fixture in an exposed position.

Polycarbonate and quality plastics Used in some modern outdoor fixtures, particularly for diffusers and shades. Quality UV-stabilised polycarbonate performs well outdoors — it does not corrode and resists impact. Cheap non-stabilised plastic yellows and becomes brittle under UV exposure. Check that any plastic components are UV-stabilised for outdoor use.

Finish and Colour: What Holds Up Outdoors

Matte black — popular in 2026 and visually versatile. Quality powder coat holds well on aluminum in standard climates. Check coating thickness and quality — thin coats chip and rust faster.

Brushed brass and antique brass — warm, timeless, and increasingly popular in outdoor applications. On solid brass fixtures, the finish is the material itself and ages beautifully. On brass-finished aluminum, the coating quality determines longevity.

Brushed nickel and chrome — suits contemporary and urban architecture. Chrome can show corrosion at the edges of scratches in humid environments. Nickel is more stable.

Raw aluminum and natural metallic — clean and minimal. The anodising process on quality aluminum creates a hard surface layer that resists corrosion far better than paint or powder coat alone.

For coastal environments: avoid any finish that relies on a coating over a reactive base metal. Choose solid brass, marine-grade stainless, or anodised aluminum as the base material, not just the surface finish.

The Practical Checklist Before Buying

Before confirming any outdoor lighting fixture, check these five things:

IP rating matches the location. Covered porch with full overhang → IP44 minimum. Exposed front door wall → IP65. Coastal property → IP65 with marine-grade material, or IP67.

Material suits the climate. Standard residential climate → powder-coated aluminum is fine. Coastal or high-humidity → solid brass, marine-grade stainless, or equivalent.

Cable entry is properly sealed. Check that the fixture includes a rated cable gland or that the installation method provides equivalent sealing at the cable entry point.

Fixings are corrosion-resistant. Stainless steel fixings only for outdoor installation. Standard steel screws are a common failure point.

LED light source is rated for the temperature range. LED efficiency and lifespan are affected by extreme temperatures. Check the fixture's operating temperature range against your climate, particularly if you are in a region with very hot summers or very cold winters.

Shop Nordalight Outdoor Wall Sconces

Every Nordalight outdoor fixture is specified for real outdoor conditions — correct IP rating for the stated application, quality materials, warm LED light, and Scandinavian design that holds up as well as it performs.

→ Shop All Outdoor Wall Sconces IP-rated outdoor wall sconces for front doors, patios, balconies, and garden walls — warm LED, weather-resistant, built to last.

→ Browse the Outdoor Lights Collection The complete Nordalight outdoor collection — every exterior fixture rated, tested, and designed to perform in real outdoor conditions.

→ Explore All Wall Lights Indoor and outdoor wall sconces in the same Scandinavian design language — extend your interior lighting aesthetic to the exterior without compromise.

The right outdoor fixture in the right location, with the right rating and material, will still look good in ten years. The wrong one will need replacing in two. Specify correctly from the start.