UK bathrooms are split into zones under the wiring regulations (BS 7671), based on how close a fitting is to water. Zone 0, inside the bath or shower, needs IP67 and low voltage. Zones 1 and 2 need at least IP44, and IP44 is the usual standard for hotel bathroom lights and illuminated mirrors.
A hotel bathroom has to be two things at once: a practical space where guests get ready, and a calm space where they unwind. Lighting is what makes both possible. Soft, flattering light makes a bathroom feel like a spa. Clear, even light at the mirror makes it work.
But bathrooms come with rules, and for good reason. Water and electricity don’t mix, so every fitting needs to be right for where it’s installed. Here’s how to get IP-rated bathroom lighting for hotels looking beautiful and meeting the regulations.
Designing for how guests use the space
Bathroom lighting plays a big part in the guest experience, so think about the guest’s day. In the morning, they need bright, even light to shave, apply make-up or style their hair. In the evening, they want something softer to relax in the bath. And in the middle of the night, they need just enough light to find their way without being dazzled awake.
The best hotel bathroom lighting schemes build in all three:
- Task lighting from an illuminated mirror gives clear, shadow-free light on the face for getting ready.
- Mood lighting from discreet downlights, cove lighting or backlit features creates a calm, spa-like feel.
- Convenience lighting, such as plinth or under-vanity LED strip, guides guests on late-night visits.
What are bathroom zones?
In the UK, bathrooms are divided into zones under the wiring regulations (BS 7671). Each zone reflects how likely a fitting is to come into contact with water, and that sets which fittings can go where.
| Zone | Where it is | Typical minimum IP rating |
|---|---|---|
| Zone 0 | Inside the bath or shower tray | IP67, low voltage only (max 12V) |
| Zone 1 | Above the bath or shower, up to 2.25m from the floor | IP44 at least, with IP65 widely recommended |
| Zone 2 | 0.6m outside the bath or shower, up to 2.25m | IP44 |
| Outside the zones | Anywhere else in the bathroom | No set minimum, but IP44 is good practice |
Requirements vary with the layout and the installation, so always have bathroom lighting installed by a qualified electrician who can confirm compliance.
IP ratings explained
An IP (Ingress Protection) rating tells you how well a fitting is protected against solids and water.
- The first number covers solids such as dust, from 0 to 6.
- The second number covers water, from 0 to 8.
So IP44 bathroom lights are protected against small solid objects and against water splashing from any direction. That makes IP44 the go-to rating for most hotel bathroom fittings outside the shower and bath, including illuminated mirrors.
Illuminated bathroom mirrors: where form meets function
An illuminated bathroom mirror does more for a hotel bathroom than almost any other fitting. It lights the face evenly from the front, avoiding the harsh shadows you get from a single downlight overhead. It also becomes a design feature in its own right, setting the tone for the whole room.
When specifying hotel bathroom mirrors, look for:
- An IP44 rating as a minimum for bathroom use
- A demisting pad, so guests aren’t wiping the mirror after every shower
- Colour temperature to suit the scheme, or CCT adjustment so guests can choose warmer or cooler light
- Simple controls, such as a single switch that turns on the light and demister together
- A shaver socket, if the design calls for one
Why a demisting mirror is worth it
A steamed-up mirror is one of those small frustrations guests notice. A demisting mirror has a heated pad behind the glass that keeps the centre clear after a hot shower. For hotels, it’s an easy upgrade that makes the room feel more considered. It’s low-maintenance lighting at its best, saving housekeeping time with fewer smears to clean.
Bespoke mirrors for hospitality projects
Every hotel has its own look, and off-the-shelf mirrors don’t always fit the design. From an oversized statement piece to a custom shape that matches the interior, we’ll work with you to create a made-to-order mirror that complements the decor, colour scheme and architectural style of the space. Sensio’s bespoke mirror service lets you choose the shape, size and colour temperature to suit your space. Go for an illuminated LED design, or pair a non-illuminated mirror with ambient wall lights for a softer, layered look.
Our hotel mirrors are made to the dimensions of your vanity unit and IP44 rated as standard, with high-CRI light at 3000K to 4000K for accurate grooming. A single mains-switched input turns on both the LED illumination and the integrated demister, so there’s no touch sensor for guests to figure out and no separate switch for housekeeping to check. One switch, light on, mirror clear, every time. Each mirror is designed and assembled by our in-house UK team, supplied as a complete, tested unit and backed by our 7-year guarantee.
Mood and convenience lighting in the bathroom
LED strip lighting under vanity units, along plinths or in shower niches adds a soft glow that makes a bathroom feel calm and luxurious. Low-voltage LED strip with the right IP rating can be integrated neatly into joinery, and an aluminium LED profile with a diffuser gives a clean, even line of light.
Used on a motion sensor, under-vanity lighting doubles as a gentle night light, so guests never have to switch on the main lights at 3am.
See our bathroom lighting at HIX Europe
We’re at HIX Europe, ExCeL London, from 25/11/2026 to 26/11/2026. Visit Stand E55 to see our illuminated mirrors and bespoke designs in person, and talk to our team about your next hotel bathroom project.
Book a meeting with us at HIX, here.
FAQs
What are bathroom zones? Bathroom zones are areas defined by the UK wiring regulations (BS 7671) based on how close they are to water. Each zone sets the IP rating and voltage a fitting needs.
What IP rating do bathroom lights need? It depends on the zone. Zone 1 needs at least IP44, Zone 2 typically IP44, and Zone 0 needs IP67 and low voltage. A qualified electrician should confirm the requirements.
What does IP44 mean? IP44 means a fitting is protected against solid objects over 1mm and against water splashing from any direction.
Are illuminated mirrors safe in bathrooms? Yes, when they carry a suitable IP rating (usually IP44), are installed in the right zone and are fitted by a qualified electrician.
What is a demisting mirror? A demisting mirror has a heated pad behind the glass that stops it steaming up, keeping it clear after a hot shower.
This guide is general information, not electrical or regulatory advice. Always use a qualified electrician and check the current regulations.
