Lighting buying guide
IP ratings explained: IP20, IP44, IP65 and IP68
IP describes a defined level of enclosure protection against access, solid objects and water. It helps assess operating conditions but does not replace an installation assessment.
Guide chapters — choose a topic
How to read the two digits
IEC 60529 classifies enclosure protection. The first digit concerns access and solid objects; the second concerns water under specified test conditions. An X means that a degree is not specified for that position; it does not mean zero protection.
| Example | Meaning in brief | Do not assume |
|---|---|---|
| IP20 | Protection against access with a finger and solid objects of the specified size; no water protection declared by the second digit. | Suitability for rain, splashes or every indoor location. |
| IP44 | Protection against solid objects of at least 1 mm and splashing water in the defined test. | Suitability for immersion or every bathroom position. |
| IP54 | Dust-protected and splash-protected under the classification. | A fully dust-tight enclosure. |
| IP65 | Dust-tight and protected against water jets in the specified test. | Permission to pressure-wash or immerse it. |
| IP67 | Dust-tight and protected during temporary immersion under defined test conditions. | Continuous underwater use. |
| IP68 | Dust-tight and protected under immersion conditions specified for the product. | A universal depth or unlimited immersion time. |
A higher number is not a universal ranking
Immersion and water jets are different tests. Do not assume that a product with an immersion rating has every lower water-test capability unless the relevant protection is also declared. Follow the product documentation.
What IP does not establish
- Resistance to corrosion, cleaning chemicals, UV or all weather effects.
- Electrical protection class, impact resistance or installation quality.
- Suitability for every bathroom zone, pool, soil installation or marine environment.
- The correct cable entries, connections, seals and mounting method.
Choose for the actual location
A sheltered wall, a wet area near the ground and a position close to a shower are different environments. Check the manufacturer’s intended use and have the electrical installation and applicable requirements assessed by a qualified electrician.
Questions before buying
Does IP68 always mean more than one metre under water?
The actual depth, duration and operating conditions must be specified for the product. Do not use a universal depth assumption.
Is IP44 enough everywhere in a bathroom?
No. Required protection depends on the precise location and installation. Have the selection assessed for the relevant zone.
Prepared by twoje-lampy.live · updated 24 October 2026.
Technical references: webstore.iec.ch, www.phoenixcontact.com, iportal2.schneider-electric.com.