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Is IP67 Better than IP66?

In the world of technology, there are many different standards and certifications that determine the performance and durability of electronic devices. One such standard is the Ingress Protection (IP) rating, which classifies the degree of protection provided by a device against solid objects and liquids. Two commonly used IP ratings are IP67 and IP66, but how do they compare? Let's dive into the technical details to find out.

Understanding IP Ratings

Before we delve into the specifics of IP67 and IP66, let's first understand the basics of IP ratings. The IP code consists of two digits: the first digit represents the protection level against solid objects (such as dust), while the second digit represents the protection level against moisture.

For instance, IP6X means complete protection against dust, while IPX6 means protection against powerful water jets. It's important to note that the "X" denotes that the specific level of protection has not been tested or certified.

IP66: Strong Protection against Dust and Water

IP66-rated devices are designed to provide full protection against dust and strong jets of water. The "6" in IP66 indicates that the device is completely protected against dust, even in highly dusty environments. The device can also withstand powerful water jets from any direction without any harmful effects.

With an IP66 rating, you can confidently use the device in harsh outdoor conditions, industrial environments, or areas where frequent exposure to water and dust is expected. This makes IP66 suitable for outdoor cameras, LED lighting, and electrical enclosures.

IP67: Enhanced Protection against Dust and Water Immersion

On the other hand, IP67-rated devices offer a higher level of protection against dust and water compared to IP66. Similar to IP66, an IP67 rating guarantees complete protection against dust ingress. However, the "7" indicates that the device can withstand immersion in water up to a depth of one meter for a limited time.

This means that IP67-rated devices are suitable for use in more extreme conditions where water submersion is possible. They can survive accidental drops in water like in swimming pools or temporary submergence during outdoor activities without suffering damage.


In conclusion, both IP67 and IP66 offer robust protection against dust and water, but there are slight differences. IP66 ensures reliable protection against dust and strong jets of water, making it ideal for various outdoor applications. On the other hand, IP67 takes it a step further by providing additional resistance to water immersion, making it suitable for devices that may be exposed to water submersion on rare occasions. Ultimately, the choice between the two IP ratings depends on the specific requirements and environmental conditions in which the device will be used.

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