The Lighting Company

Buying Guide
Updated 5 October 2026

IP Ratings Explained

Every light has an IP rating. It tells you how well the light is sealed against dust and water, and so where it is safe to fit. This guide explains what the numbers mean and which rating you need.

A red-brick house at dusk with a lit black lantern on the wall either side of a white front door.

Buying Guide · 4 min Read ·

IP Ratings Explained

Every light has an IP rating. It tells you how well the light is sealed against dust and water, and so where it is safe to fit. This guide explains what the numbers mean and which rating you need.

Every light has an IP rating. It tells you how well the light is sealed against dust and water, and so where it is safe to fit. This guide explains what the numbers mean and which rating you need.

How to Read an IP Rating

IP stands for Ingress Protection. The rating is two digits:

  • The first digit (0 to 6) is protection against solid objects, from fingers to dust.
  • The second digit (0 to 8) is protection against water.

The higher the number, the better the protection. An X in place of a digit, as in IPX4, means that part was not tested.

The first digit: solid objects

DigitWhat it keeps out
1Objects over 50mm, such as the back of a hand
2Objects over 12.5mm, such as a finger
3Objects over 2.5mm, such as a tool
4Objects over 1mm, such as a wire
5Dust: a little may get in, but not enough to do harm
6Dust entirely: the light is dust-tight

The second digit: water

DigitWhat it keeps out
1Water dripping straight down
2Dripping water when the light is tilted
3Spraying water, such as rain at an angle
4Water splashing from any direction
5Jets of water
6Powerful jets of water
7Being under water for a short time
8Being under water all the time

The Ratings You'll See Most

Scroll sideways to see the whole table.

RatingWhat it meansWhere it suits
IP20Protected against fingers. No water protection.Dry rooms: living rooms, bedrooms, hallways
IP23Protected against fingers and light spray.Sheltered spots such as a covered porch
IP44Protected against small objects and splashing water from any direction.Bathrooms, and outdoor walls under cover
IP45As IP44, and also protected against low-pressure jets of water.Over a bath or shower
IP54Protected against dust and splashing water.Outdoors in most positions
IP65Dust-tight and protected against jets of water.Exposed outdoor walls, gardens, over showers
IP67Dust-tight and protected against temporary immersion.Ground lights, and anywhere that can flood
IP68Dust-tight and protected against continuous immersion.Ponds and water features

Which Rating Do I Need?

Cutaway drawing of a house and garden with each light marked: living room, kitchen, bathroom, porch, an exposed wall, a flower bed and a pond.
  1. Living room: IP20
  2. Kitchen: IP44
  3. Bathroom: by zone
  4. Porch: IP44
  5. Exposed wall: IP65
  6. Flower bed: IP67
  7. Pond: IP68
The rating a light needs depends on where it goes. The red dots mark the lights. IP44 in the kitchen is for a light near the sink; on an exposed wall, IP54 is the least and IP65 the safer choice.
  • Living rooms, bedrooms and hallways: IP20 is fine.
  • Kitchens: IP20 is fine for most lights. Choose IP44 near the sink or cooker if the light could be splashed.
  • Bathrooms: it depends on the zone the light is in. Near the bath or shower you'll need IP44 or higher; directly over it, many people choose IP65. Our bathroom zones guide explains the zones.
  • Outdoors: IP44 is the minimum for a wall light. Choose IP54 or IP65 for exposed walls and garden lights, and IP67 for lights set into the ground.

Two Things to Remember

  • A higher rating is never wrong. An IP65 light works perfectly well in a dry room; it simply costs a little more.
  • The rating covers the whole light as fitted. Follow the fitting instructions exactly, especially seals and gaskets, or the rating no longer applies.

Finding the Rating

Every light on our site lists its IP rating in the specification, and you can filter bathroom and outdoor lights by rating.

Need a Hand?

Call our lighting team on 0113 2818 343. Tell us where the light is going and we'll point you to the right rating.

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