• 24 Aug 2026

IP65 vs IP66 vs IP67 LED Wall Washer: Which One Should You Choose?

IP65 vs IP66 vs IP67 LED Wall Washer: Which One Should You Choose?

When selecting an outdoor LED wall washer, IP rating is one of the most important specifications to consider.

LED wall washers installed on building facades, hotels, bridges, commercial buildings and landscape projects are exposed to rain, dust, moisture and changing weather conditions.

So, should you choose IP65, IP66 or IP67?

The answer depends on the installation environment and the level of protection required.

In general:

IP65 → suitable for outdoor rain and general facade lighting

IP66 → stronger protection against water jets and harsh outdoor environments

IP67 → designed for temporary immersion in water

However, a higher IP rating is not automatically better for every project. The correct choice should be based on the actual installation environment.

What Does IP Rating Mean?

IP stands for Ingress Protection.

The IP rating consists of two numbers.

For example:

IP67

The first number indicates protection against solid particles such as dust.

The second number indicates protection against water.

The first digit can range from lower levels of protection to complete protection against dust.

For outdoor LED wall washers, IP6X indicates a high level of dust protection.

The second digit determines the level of water protection.

This is why IP65, IP66 and IP67 are different even though all three provide strong outdoor protection.

IP65 vs IP66 vs IP67: Quick Comparison

The most important difference between these ratings is the level of water protection.

IP65 and IP66 are mainly intended for protection against water from the outside, while IP67 provides protection against temporary immersion under specified test conditions.

What Is an IP65 LED Wall Washer?

An IP65 LED wall washer is dust-tight and protected against water jets.

This makes IP65 suitable for many outdoor architectural lighting applications.

Typical applications include:

• Building facade lighting

• Hotel facade lighting

• Commercial buildings

• Office buildings

• Shopping centers

• Villa exterior lighting

• Landscape lighting

• Architectural accent lighting

For a wall washer mounted vertically on a building facade, IP65 can often provide sufficient protection when the fixture is not exposed to flooding or continuous high-pressure water.

Advantages of IP65

• Suitable for general outdoor use

• Strong dust protection

• Good rain and water-jet protection

• Suitable for building facades

• Cost-effective for many applications

For standard architectural facade lighting, IP65 can be a practical choice.

What Is an IP66 LED Wall Washer?

An IP66 LED wall washer provides the same high level of dust protection as IP65 but has a higher level of protection against powerful water jets.

This makes IP66 suitable for more demanding outdoor environments.

Typical applications include:

• Large building facades

• Bridges

• Commercial buildings

• Hotels

• Coastal areas

• Outdoor public buildings

• Landscape lighting

• Harsh weather environments

If a project is exposed to heavy rain, strong water spray or more demanding outdoor conditions, IP66 may provide an additional level of protection compared with IP65.

Advantages of IP66

• Dust-tight

• Higher water-jet protection than IP65

• Suitable for harsh outdoor environments

• Suitable for architectural and facade lighting

• Good choice for long-term outdoor installations

For many professional outdoor projects, IP66 is a strong balance between protection and practicality.

What Is an IP67 LED Wall Washer?

An IP67 LED wall washer provides dust-tight protection and protection against temporary immersion in water under specified test conditions.

This makes IP67 particularly useful for applications where the fixture may be exposed to water accumulation or temporary flooding.

Potential applications include:

• Landscape lighting

• Wet outdoor environments

• Low-level architectural lighting

• Areas exposed to water accumulation

• Special architectural structures

• Certain waterfront applications

However, IP67 does not mean that the fixture is designed for permanent underwater operation.

This is an important distinction.

If the fixture will be permanently installed underwater, a dedicated underwater LED light with an appropriate IP rating and underwater design should be selected.

IP65 vs IP66: What Is the Difference?

The main difference between IP65 and IP66 is the level of protection against water jets.

Both provide high dust protection.

The difference is mainly:

IP65 → water jets

IP66 → more powerful water jets

For a typical building facade where the LED wall washer is exposed to rain, IP65 may be sufficient.

For a more exposed location or harsh weather environment, IP66 can provide additional protection.

IP66 vs IP67: What Is the Difference?

The main difference is the type of water exposure.

IP66 focuses on protection against powerful water jets.

IP67 provides protection against temporary immersion.

Therefore, IP67 is not simply "better IP66".

They protect against different water conditions.

For example:

Building facade exposed to heavy rain → IP66

Fixture potentially exposed to temporary water accumulation → IP67

The correct choice depends on the actual installation environment.

Which IP Rating Is Best for Building Facade Lighting?

For most building facade lighting projects, IP65 or IP66 can be suitable depending on the environment and fixture location.

Choose IP65 when:

• The fixture is mounted on a building facade

• The installation is not exposed to flooding

• Normal rain protection is required

• The project has standard outdoor conditions

Choose IP66 when:

• The facade is exposed to heavy rain

• The building is in a harsh outdoor environment

• Strong water jets may reach the fixture

• Extra water-jet protection is preferred

Choose IP67 when:

• Temporary water immersion is possible

• The fixture is installed in a location where water can accumulate

• The project has special wet-environment requirements

For a normal vertical building facade, choosing IP67 solely because it has a higher number is not necessarily necessary.

Which IP Rating Is Best for Hotel Facade Lighting?

Hotels often use LED wall washers around:

• Exterior walls

• Entrances

• Columns

• Rooflines

• Landscaping

• Swimming pool areas

For exterior hotel facade lighting, IP65 or IP66 can be suitable depending on the installation environment.

For areas where temporary water exposure is possible, an IP67 product may be considered.

The key is to select the IP rating according to the actual installation location.

Which IP Rating Is Best for Bridge Lighting?

Bridge lighting can be more demanding because fixtures may be exposed to:

• Heavy rain

• Wind

• Water spray

• Humidity

• Dust

• Temperature changes

For many bridge lighting projects, IP66 or IP67 can be considered depending on the fixture location and water exposure.

For bridge columns and structures located close to water, IP67 may provide additional protection where temporary immersion is possible.

For fixtures mounted high on the bridge structure, IP66 may already provide an appropriate level of protection.

Is IP67 Always Better Than IP65?

Not necessarily.

This is one of the most common misunderstandings about IP ratings.

IP67 provides a different type of water protection than IP65.

A higher IP number does not automatically mean that the fixture is better for every application.

For example, if an LED wall washer is installed high on a building facade and is only exposed to rain, an IP65 or IP66 product may already meet the project's requirements.

Choosing IP67 may increase product cost without providing a meaningful benefit.

The correct approach is:

Choose the IP rating according to the actual environmental conditions.

IP Rating and LED Wall Washer Installation

The IP rating of the fixture is important, but the installation method is equally important.

Even a high-IP LED wall washer can experience problems if the installation is not properly designed.

Pay attention to:

• Cable glands

• Connectors

• Waterproof connectors

• Cable routing

• Power supply protection

• Drainage

• Mounting position

• Seal condition

The complete lighting system should be designed for the outdoor environment.

IP Rating Is Not the Same as Waterproof Quality

Another important point is that IP rating is only one part of product quality.

When choosing an outdoor LED wall washer, also consider:

Housing Material

Aluminum housing can provide good mechanical strength and heat dissipation when properly designed.

Heat Dissipation

Good thermal management is important for LED performance and long-term reliability.

LED Quality

High-quality LEDs can provide better efficiency, color consistency and lifetime.

Driver Quality

The LED driver should be suitable for the voltage, power and environmental conditions.

Sealing Design

Gaskets, connectors and cable entry points should be properly designed to maintain the intended protection level.

Therefore:

IP65/IP66/IP67 + good mechanical design + good thermal management + reliable driver = better outdoor lighting performance.

IP65 vs IP66 vs IP67: Which One Should You Choose?

Here is a simple selection guide.

Choose IP65 for:

Standard outdoor facade lighting

Suitable for:

• Hotels

• Villas

• Office buildings

• Commercial buildings

• General architectural lighting

Choose IP66 for:

Harsh outdoor environments

Suitable for:

• Large building facades

• Bridges

• Coastal projects

• Public buildings

• Heavy-rain environments

Choose IP67 for:

Areas with possible temporary water immersion

Suitable for:

• Wet landscape areas

• Low-level installations

• Areas where water can accumulate

• Special outdoor environments

IP65 vs IP66 vs IP67: Final Comparison

Final Recommendation

When choosing an IP65, IP66 or IP67 LED wall washer, don't simply choose the highest IP number.

Instead, consider the actual environment:

IP65 → Standard outdoor facade lighting

IP66 → More demanding outdoor environments and stronger water exposure

IP67 → Areas where temporary immersion may occur

For most standard building facade lighting projects, IP65 or IP66 can be sufficient.

For bridges, waterfront projects and locations where water accumulation is possible, IP66 or IP67 may be more appropriate depending on the installation conditions.

Always Lighting offers outdoor LED wall washer solutions with different IP protection levels, beam angles, power options and control systems for architectural facade lighting projects.

If you are not sure which IP rating you need, provide the installation location, mounting height, exposure to rain/water and project environment. A suitable LED wall washer specification can then be selected based on the actual conditions.

FAQ

Is IP66 better than IP65 for LED wall washers?

IP66 provides a higher level of protection against powerful water jets than IP65. For harsh outdoor environments, IP66 can provide additional protection.

Is IP67 LED wall washer waterproof?

IP67 provides protection against temporary immersion under specified test conditions. However, IP67 does not automatically mean the fixture is suitable for permanent underwater installation.

Is IP65 enough for building facade lighting?

For many standard building facade applications, IP65 can be sufficient when the fixture is properly installed and not exposed to flooding or continuous high-pressure water.

Should I choose IP66 or IP67 for bridge lighting?

It depends on the fixture location. IP66 can be suitable for fixtures exposed mainly to rain and water jets, while IP67 may be considered where temporary immersion or water accumulation is possible.

Is a higher IP rating always better?

No. IP65, IP66 and IP67 are designed for different environmental conditions. The correct IP rating should match the actual installation environment.

What IP rating should I choose for hotel facade lighting?

IP65 or IP66 can be suitable for many hotel exterior facade lighting projects. IP67 may be considered for locations with greater water exposure.

What other specifications should I consider besides IP rating?

Also consider beam angle, lumen output, power, voltage, color temperature, CRI, control system, housing material, heat dissipation and driver quality.

Can IP67 LED wall washers be installed underwater?

Not necessarily. IP67 is designed for temporary immersion under specified test conditions, not continuous underwater operation. For permanent underwater applications, use a dedicated underwater LED lighting product designed for that environment.