By James Batten, 299 Lighting · Published · Updated
In short
In UK bathrooms, Zone 1 above the bath or shower needs at least IP65, Zone 2 within 60 cm needs IP44, and outside the zones standard IP20 fittings are allowed.
Bathrooms are the room where getting the light fitting wrong is a safety issue, not just a style issue. UK wiring regulations (BS 7671) split a bathroom into zones, and each zone needs a minimum IP rating.
What does an IP rating mean?
The first digit is protection against solids such as dust and fingers. The second is protection against water. IP44 resists splashes; IP65 resists jets of water.
UK bathroom zones
| Zone | Where | Minimum rating |
|---|---|---|
| Zone 0 | Inside the bath or shower tray | IPX7, 12V SELV only |
| Zone 1 | Above the bath or shower, up to 2.25 m | IP65 |
| Zone 2 | 60 cm out from Zone 1, and around the basin | IP44 |
| Outside zones | Everywhere else | IP20 is allowed, IP44 recommended |
Choosing Ideal Lux fittings
Many Ideal Lux wall lights and mirror lights are IP44, which makes them suitable for Zone 2 around basins and mirrors. Always check the IP rating shown on each fitting page, and the technical sheet, before ordering. Browse Ideal Lux wall lights and filter by "Damp / outdoor (IP44+)" on all fittings.
Downlights in the shower
Over a shower you will normally need IP65 fire-rated downlights. Our sister site recessedlighting.co.uk covers these in detail. For a seamless plaster-in look, see trimless lighting.
Get it signed off
Bathroom lighting must be installed by a qualified electrician. If you are unsure which zone a fitting sits in, talk to the 299 Lighting team before you buy.
Frequently asked questions
What IP rating do I need for bathroom lights?
IP65 in Zone 1 above the bath or shower, IP44 in Zone 2 and around the basin, and IP20 is allowed outside the zones.
Can I use a normal wall light in a bathroom?
Only outside the zones, but an IP44 fitting is still recommended for any bathroom.
Are Ideal Lux mirror lights suitable for bathrooms?
Many are IP44, which suits Zone 2. Check the IP rating on each fitting page before you order.
