• 04 Sep 2026

IP65 vs IP66 vs IP67 LED Flood Light: Which One Should You Choose?

IP65 vs IP66 vs IP67 LED Flood Light: Which One Should You Choose?

When selecting an outdoor LED flood light, IP rating is an important specification to consider.

Outdoor flood lights may be exposed to rain, dust, water spray and other environmental conditions. Choosing the right IP rating can help ensure reliable operation and long service life.

But what is the difference between IP65, IP66 and IP67 LED flood lights?

Which IP rating is better for building facade lighting?

Is IP67 always better than IP66?

This guide explains the differences between IP65, IP66 and IP67 and how to choose the right LED flood light IP rating for outdoor architectural lighting projects.

What Does the IP Rating Mean?

IP stands for Ingress Protection.

An IP code consists of two numbers:

First number = protection against solid particles

Second number = protection against water

For outdoor LED flood lights, the first number is usually 6, meaning the enclosure is dust-tight.

The second number determines the level of water protection.

Therefore, IP65, IP66 and IP67 all provide strong dust protection, but their water resistance levels are different.

IP65 LED Flood Light

What Is IP65?

An IP65 LED flood light is dust-tight and protected against water jets from different directions.

IP65 can be suitable for many outdoor applications where the fixture is exposed to normal rain and water spray.

Where Is IP65 LED Flood Light Used?

Typical applications include:

• Building facade lighting

• Hotel exterior lighting

• Commercial buildings

• Villa lighting

• Landscape lighting

• Entrance lighting

• Architectural accent lighting

For protected outdoor locations where direct water exposure is moderate, IP65 can be a practical choice.

IP66 LED Flood Light

What Is IP66?

An IP66 LED flood light is dust-tight and designed to withstand stronger water jets than IP65.

For many outdoor architectural lighting projects, IP66 provides a good balance between waterproof protection and practical outdoor use.

Where Is IP66 LED Flood Light Used?

IP66 is suitable for:

• Building facade lighting

• High-rise building lighting

• Hotel facade lighting

• Commercial building lighting

• Bridge lighting

• Government building lighting

• Monument lighting

• Outdoor architectural lighting

For exposed building facades and architectural projects, IP66 is often a strong option when the fixture may experience heavy rain and direct water spray.

IP67 LED Flood Light

What Is IP67?

An IP67 LED flood light is dust-tight and designed to withstand temporary immersion in water under specified test conditions.

IP67 provides a higher level of water protection than IP65 and IP66 in terms of temporary immersion.

Where Is IP67 LED Flood Light Used?

IP67 may be suitable for:

• Areas with a higher risk of water accumulation

• Outdoor areas exposed to severe weather

• Low-mounted lighting fixtures

• Landscape installations

• Locations where temporary flooding may occur

• Applications requiring additional water protection

However, IP67 does not automatically mean that the product is suitable for permanent underwater installation.

For permanent underwater applications, a product specifically designed and tested for underwater use should be selected.

IP65 vs IP66 vs IP67 LED Flood Light Comparison

The “higher” IP number is not automatically the best choice for every project.

The correct IP rating depends on the actual environment and installation conditions.

Is IP67 Better Than IP66?

Not always.

IP67 provides protection against temporary immersion, while IP66 is designed for protection against powerful water jets.

These tests are different.

Therefore, IP67 should not simply be considered a higher version of IP66 for every outdoor application.

For many building facade lighting projects, IP66 may already provide sufficient environmental protection.

For applications where temporary immersion is possible, IP67 may be more appropriate.

Which IP Rating Is Best for Building Facade Lighting?

For most outdoor building facade applications, IP66 LED flood lights are a practical choice.

They provide strong protection against dust and powerful water jets while being well suited to exposed architectural installations.

For example:

Low-Rise Building

IP65 or IP66 may be suitable depending on the outdoor environment.

High-Rise Building

IP66 is a strong option for exposed facade lighting, especially in areas with heavy rain and direct water spray.

Coastal or Harsh Outdoor Environment

IP66 or IP67 may be considered depending on the project conditions.

Other factors such as corrosion protection, housing materials, coating and installation should also be evaluated.

Areas With Possible Temporary Flooding

IP67 may be more appropriate where temporary immersion is a realistic risk.

IP Rating for Bridge LED Flood Lights

Bridge lighting fixtures can be exposed to:

• Rain

• Wind-driven water

• Humidity

• Dust

• Road spray

• Outdoor environmental conditions

Therefore, an appropriate IP66 or IP67 LED flood light may be considered depending on the location and installation position.

For dynamic bridge lighting, RGB or RGBW LED flood lights with DMX512 control can also be used.

IP Rating for Hotel and Commercial Building Lighting

Hotels and commercial buildings usually require reliable outdoor lighting because fixtures may operate for long periods in exposed environments.

For these projects, IP65 and IP66 can both be considered.

However, for highly exposed facade positions, IP66 LED flood lights can provide a stronger level of water-jet protection.

The final selection should consider:

• Building location

• Rainfall

• Installation position

• Water spray

• Cleaning method

• Fixture orientation

• Maintenance requirements

How to Choose the Right IP Rating for an Outdoor LED Flood Light?

Use the following process:

Step 1: Check the Installation Environment

Determine whether the fixture is:

• Under an eave

• On a building facade

• On a roof

• Near the ground

• On a bridge

• In an open outdoor area

Step 2: Check Water Exposure

Consider whether the fixture will experience:

• Light rain

• Heavy rain

• Direct water spray

• Pressure washing

• Water accumulation

• Temporary flooding

Step 3: Select the IP Rating

As a general guide:

IP65 → Standard outdoor water protection

IP66 → Strong protection for exposed architectural applications

IP67 → Applications where temporary immersion may occur

Step 4: Check Other Product Specifications

IP rating is only one part of product selection.

Also check:

• Wattage

• Lumens

• Beam angle

• LED chip

• Color temperature

• RGB/RGBW

• DMX512

• Input voltage

• Housing material

• Driver quality

• Corrosion resistance

• Installation method

IP Rating and LED Flood Light Beam Angle

IP rating protects the fixture from external environmental conditions, while beam angle controls how light is distributed.

For architectural facade lighting, both should be considered.

For example:

IP66 + 15° beam angle

may be suitable for narrow architectural details or columns.

IP66 + 30° beam angle

may be suitable for medium-sized building facades.

IP66 + 45°–60° beam angle

may be suitable for wider surfaces and short-distance facade lighting.

Choosing the correct combination of IP rating, wattage and beam angle can significantly improve the final lighting effect.

IP65 vs IP66 vs IP67 for RGBW LED Flood Lights

RGB and RGBW flood lights are commonly used for dynamic architectural lighting.

They can be used for:

• Building facades

• Bridges

• Hotels

• Commercial buildings

• Monuments

• Public spaces

For outdoor RGBW applications, waterproof protection is particularly important because the fixture may remain outdoors for long periods.

An IP66 RGBW LED flood light with DMX512 control can be a practical solution for many exposed architectural projects.

For locations with possible temporary immersion, IP67 may be considered depending on the project design.

Why IP66 Is Common for Outdoor Architectural LED Flood Lights

IP66 provides a useful combination of dust-tight protection and resistance to powerful water jets.

For architectural lighting applications, this can make IP66 a practical specification for:

• Building facades

• Commercial buildings

• Hotels

• Bridges

• Government buildings

• Monuments

• Outdoor structures

For Always Lighting's outdoor architectural flood light range, IP66 protection is available across several project-oriented products.

Common Mistakes When Choosing LED Flood Light IP Rating

Choosing IP67 Just Because It Is a Higher Number

A higher number does not necessarily mean better performance for every application.

Choose according to the actual environment.

Assuming IP65 and IP66 Are the Same

They provide different levels of protection against water jets.

For highly exposed outdoor locations, IP66 may provide more appropriate protection.

Using IP67 for Permanent Underwater Applications

IP67 is intended for temporary immersion under specified test conditions.

Permanent underwater applications should use fixtures specifically designed for underwater installation.

Ignoring Installation Position

A product installed under a roof and a product installed directly on an exposed facade may require different environmental protection.

Recommended Outdoor LED Flood Light Products

Building Facade LED Flood Light

For building facades and outdoor architectural lighting.

https://www.always-lighting.com/led-flood-light/BuildingFacadeLEDFloodLight/

Architectural LED Flood Light

For hotels, commercial buildings, public buildings and architectural projects.

https://www.always-lighting.com/led-flood-light/architectural-led-flood-light/

Bridge LED Flood Light

For bridge and large structural lighting applications.

https://www.always-lighting.com/led-flood-light/bridge-led-flood-light/

RGB Waterproof LED Flood Light

For RGB/RGBW color-changing architectural lighting and DMX512 projects.

https://www.always-lighting.com/led-flood-light/rgb-waterproof-led-flood-light/

LED Flood Light Manufacturer

For distributors, lighting contractors, wholesalers and project buyers.

https://www.always-lighting.com/led-flood-light/led-flood-light-manufacturer/

About IP65, IP66 and IP67 LED Flood Lights

What is the difference between IP65 and IP66 LED flood lights?

Both are dust-tight, but IP66 provides protection against more powerful water jets than IP65.

Is IP66 waterproof?

IP66 provides strong protection against powerful water jets, making it suitable for many exposed outdoor applications. It is not designed for immersion.

Is IP67 better than IP66?

IP67 provides protection against temporary immersion, while IP66 focuses on protection against powerful water jets. The better choice depends on the application.

Is IP65 suitable for outdoor LED flood lights?

Yes. IP65 can be suitable for many outdoor applications, including building facades, hotels, villas and landscape structures.

Is IP66 suitable for building facade lighting?

Yes. IP66 is a practical choice for many exposed architectural facade lighting projects, particularly where the fixture may experience heavy rain and direct water spray.

Can an IP67 LED flood light be used underwater?

IP67 protects against temporary immersion under specified conditions. For permanent underwater lighting, use a fixture specifically designed and certified for underwater installation.

What IP rating is best for bridge lighting?

IP66 or IP67 may be suitable depending on the bridge location, installation position, water exposure and project requirements.

What IP rating should I choose for a hotel facade?

IP65 or IP66 may be suitable. For highly exposed facade positions, IP66 is often a practical specification.

Does IP rating affect LED flood light performance?

IP rating mainly describes protection against solid particles and water ingress. It does not directly indicate brightness, efficiency or beam quality.

What other specifications should I check besides IP rating?

Check wattage, lumens, beam angle, LED chip, color temperature, input voltage, control system, housing material, driver quality and corrosion protection.

Conclusion

Choosing between IP65, IP66 and IP67 LED flood lights depends on the installation environment and water exposure.

For general outdoor applications, IP65 can provide suitable protection.

For exposed building facades, bridges, hotels and commercial architectural projects, IP66 LED flood lights are often a practical choice.

Where temporary immersion is possible, IP67 may provide an additional level of protection.

However, IP rating should always be evaluated together with wattage, lumens, beam angle, voltage, control system and installation conditions.

For professional outdoor architectural lighting projects, selecting the correct combination of specifications is more important than simply choosing the highest IP number.

Related Blog

https://www.always-lighting.com/Blog/how-many-watts-do-you-need-for-an-outdoor-led-flood-light/

https://www.always-lighting.com/Blog/ac220v-vs-dc24v-led-flood-light/