Usually, the standard LED lamp manuals or specifications will indicate IP Grade or IP Rating code. Many customers often ignore this parameter when buying lamps, or do not understand what this parameter means to the lamps so there are a lot of troubles when using LED lamps. Now we are talking about how we should choose the right IP Rating when buying LED lamps.

What is the IP rating?

IP is the abbreviation of Ingress Protection. The IP rating is the ability to protect against the ingress of foreign objects on the enclosure of electrical equipment. It is from the International Electrotechnical Commission’s standard IEC 60529. In this standard, the format of the IP rating is for the protection of electrical equipment enclosures against foreign objects. IPXX, where XX is two Arabic numerals, the first number represents the level of preventing solid objects from entering, the highest level is 6; The second number indicates the level of preventing water ingress, and the highest level is 8. The larger the number, the better the protection level. It is a very important standard for special or outdoor waterproof luminaires such as led trip-proof lights, street lights, floodlights,.etc.

The following is Led IP rating chart

The first number means Dust proof level (against solid objects)

NumberProtection abilityExplains and definition
0No proectionIt does’t have any special protection for outsiders or objects
1Prevent the intrusion of solid objects> 50mm in diameterPrevent the human body (such as the palm) from accidentally contacting the internal parts of led lighting fitting, and prevent the intrusion of solid objects of larger size (diameter greater than 50mm)
2Avoid the entry of solid objects which is >12.5mm in diameterPrevent people’s fingers from touching the internal parts of the appliance or led lights, and prevent outside solid objects of medium size (diameter > 12.5mm) from intruding
3Prevent entry of solid objects > 2.5mm in diameterPrevent tools, wires and similar small solid objects with a diameter or thickness greater than 2.5mm from intruding and contacting the internal parts of led lighting
4Prevent the intrusion of solid objects with a diameter >1.0mmPrevent tools, wires and similar small solid objects with a diameter or thickness greater than 1.0mm from intruding and contacting the internal parts of the lighting fixtures.
5Prevent solid objects and dustCompletely prevent the intrusion of solid objects, although it cannot completely prevent the intrusion of dust, the amount of dust intrusion will not affect the normal operation of the led lamps
6Prevent solid objects and dustCompletely prevent the intrusion of foreign objects and dust 100%

The second number means waterproof level(against liquid or moisture)

NumberProtection abilityExplains or definition
0No protectionNo protection against water or humidity
1Prevent water droplets from immersingWater droplets falling vertically (such as condensation) will not damage the LED lamps
2When tilted 15 degrees, it can still prevent water droplets from enteringWhen the led lighting is tilted from vertical to 15 degrees, dripping water will not cause damage to the LED lamp circuit
3Prevent sprayed water from immersingRainproof or prevent the water sprayed in the direction with an angle of less than 60 degrees from the vertical from entering the interior of the lamp and causing damage
4Prevent splashing water from immersingWater splashing from all directions cannot enter the lamp body and cause damage to the lamp
5Prevent water spray from enteringIn the case of low-pressure water spray for at least 3 minutes, water cannot enter the LED lamp
6Prevent big waves from immersingIn the case of a large amount of water spraying for at least 3 minutes, there is still no water entering the lamp body
7Prevent water intrusion during floodingThe lamp can last for 30 minutes at a depth of 1 meter to prevent water from entering the lamp body
  8Prevent water intrusion when sinkingIt can prevent water from intruding into the lamp body for a long time in the water with a depth of more than 1 meter

It can be seen from the above two IP Rating tables that different combinations of numbers have different dustproof and waterproof effects. Usually in the LED lighting industry, common IP Rating codes: IP22, IP44, IP54, IP65, IP66, IP67, IP68. From these common IP Ratings, We can divide these into two different categories. (IP22, IP44, IP54) are mainly used indoors, the other IP65, IP66, IP67, and IP68 are basically outdoor lighting.

IP22 led lighting and applications

It means can prevent 12.5mm solids from entering the inside of the lamp, and at the same time prevent the lamp from being invaded by the liquid when it is tilted 15 degrees. Lamps with this protection level can only be used in dry indoors, and the indoor environment cannot have too much dust. It is mostly used in the living room, bedroom, living room, offices, schools, supermarkets, etc. This kind of protection level LED lights have LED downlights, LED panel lights, led tube lights, led track lighting, etc.

IP54 led light fixture and application

This IP Rating means that the adverse effects of dust lamps can be ignored, and it is necessary to focus on its waterproof ability (Water splashing from all directions cannot enter the lamp body and cause damage to the lamp), in this case, its waterproof effect has been achieved A certain level, can be the competent indoor humid environment, such as kitchen, bathroom, toilets, outdoor balcony. This IP Rating’ lighting is usually designed base on the IP22 led lighting, such as IP54 Moisture-proof led downlights,ip54 flush mount ceiling lights, IP54 dust-proof batten, etc.

IP65 waterproof lighting fixture and application

From IP65 on, led lamps are now reaching the waterproof level, which can be used outdoors, but also indoors. For some more complex application environments, such as mines, chemical plants, and explosion-proof lamps required in these places, their IP Rating is at least IP65. It can completely prevent external dust from entering the inside of the lamp, and at the same time reach the ordinary waterproof level. Common IP65 Waterproof led lights to include outdoor landscape lights, outdoor flood lights, street lighting, high bay lights, LED Batten, etc.

IP66 LED lighting and application

It is similar to IP65, but it is with higher waterproof ability. Generally, the lighting is the same as IP65 type such as inground light, outdoor spotlights, etc. They are stronger in waterproof function, but they are still not working underwater.

IP67 waterproof lighting and application

IP67 Waterproof led lights can be working underwater. Do not install these lamps in places where the water is too deep. Those lamps installed on the ground but very close to the water are generally IP67, such as fountains on the ground, poolsides, etc. Of course, some outdoor lamps that are only used for non-underwater can also be upgraded to the IP67 protection level under customer demand. In this case, the life of the lamps will generally be longer. The manufacturer’s IP67 lights have underground lights, deck lighting, etc.

IP68 Waterproof lighting and application

IP68 is the highest level in this protection system, which can basically adapt to any environment in daily life. Generally, this kind of lamp requires very high craftsmanship and is expensive. It is often installed underwater, so the shell of such lamps is often 304 stainless steel to prevent rust and corrosion to the greatest extent. At the same time, due to the installation underwater, most of the input voltage of the lamps is AC/DC12V 24V input, which will be more Safety.


Before choosing the appropriate IP rating lamps, you need to understand the specific environment in which these lamps are installed. According to different environments, choose the appropriate IP rating lamps. For example, for indoor environments, IP54 can basically meet all requirements. Of course, if it is not a humid environment, IP22 lamps are the most suitable, and their price is generally much lower than IP54 LED light. If it is used outdoors, you need to consider whether it needs to be installed underwater, if not, IP65-IP66 is fine. If it is underwater, it is recommended to use IP68.

You can contact us if you have any other questions,ideas,or inquiries,then we can give you detail solutions.

Hello, customers

My name is Ricky Wang, I’m the business manager of GRNLED. I have been in LED lights industry for more than 10 year. Feel free to contact us. I’m happy to provide you the best service and products.

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