IP44 vs IP65 vs IP67 Bathroom Lighting Ratings Explained

Picture this:

You’re browsing for new bathroom lights. Everything looks great, but suddenly you’re faced with a string of codes: IP44, IP65, and IP67. They sound important… because they are important.

But which one do you actually need? Is an IP65-rated downlight safer than an IP44-rated one? Is IP67 better, because, you know, bigger numbers? Or is it just overkill? And what happens if you choose wrong?

Here’s the truth: it’s not about picking the light with the “highest” rating and hoping for the best. It’s about choosing the right level of protection for the right place. Too low, and you risk safety issues. Too high, and you’re paying for protection you’ll never use.

This is where most people hit a wall. Not because the options are complicated, but because no one really explains how they relate to your bathroom.

That’s why in this guide, we’ll strip away the confusion and map everything out clearly. By the end, you’ll know exactly where IP44, IP65, and IP67 fit, and more importantly, which one belongs in your bathroom.

IP44 vs IP65 vs IP67: What Do These Ratings Actually Mean?

At its core, an IP rating is simply a measure of protection.

“IP” stands for Ingress Protection, which tells you how well a light fitting is sealed against things getting inside it (ingress)… mainly dust and water.

Each IP rating has two numbers. The first refers to protection against solid objects, such as dust, while the second focuses on liquids. In bathrooms, it’s the second number that matters more.

Here are the most common IP ratings for bathrooms:

IP44: The light can handle splashes, the kind you’d expect from a sink or a bit of overenthusiastic hand washing.
IP65: These lights go further, standing up to direct jets of water, like a shower spraying nearby.
IP67: These take things to the extreme, with lights designed to survive temporary immersion, meaning they can sit in water for a limited time, with no worries.

Why does this matter? Because bathrooms constantly flirt with moisture. Steam builds up, condensation settles, and water doesn’t always stay where it should. Without the right level of protection, moisture can creep into fittings, shortening their lifespan or, worse, creating safety issues.

And you’ve watched enough movies to know what happens when electricity and water mix, haven’t you?

Just remember that the trick here isn’t choosing the highest rating available, but choosing the right one for the job.

Bathroom Zones Explained (Why IP Ratings Matter More Than You Think)

If you didn’t know yet, bathrooms are divided into zones, and each one tells a story about how much water is likely to be present, which dictates the IP rating of the lights you need.

Instead of guessing what’s safe, these zones give you a clear framework for making the right decision.

Zone 0 (Inside the Bath or Shower)

Zone 0 is the deep end, quite literally. This is inside the bath or shower tray itself, where water is unavoidable and frequent. Any lighting here must be able to cope with full immersion.

That’s why IP67 is typically required. It’s built for situations where water isn’t just expected but unavoidable. Anything less simply isn’t designed for this level of exposure.

Zone 1 (Above Bath or Shower)

Move just above the bath or shower (about 2.25 metres), and you enter Zone 1. This space is regularly exposed to water spray, condensation, and heavy steam. Lights here need to be sealed tightly enough to withstand direct water exposure, which is where IP65 comes in.

Zone 2 (Around Bath or Basin)

Zone 2 stretches outwards from the bath or basin. Water is still part of the picture, but usually in the form of splashes rather than sustained exposure.

In this area, IP44 is generally enough. It protects against stray droplets without overengineering the solution.

Outside Zones (General Bathroom Areas)

Beyond these zones, the risk drops significantly. These areas might still be affected by humidity, but direct water contact is minimal. IP44 is still a safe and sensible choice here, though in some well-ventilated bathrooms, standard fittings may be acceptable.

That said, bathrooms rarely stay completely dry, so it’s still best to err on the side of safety.

IP44 Lighting: Where It Works Best

IP44 lighting is the everyday hero of bathroom design. It doesn’t shout for attention, but it quietly does exactly what most spaces need.

As mentioned above, these lights are great for Zone 2 lighting: ceilings and walls that are away from water. Lights with an IP44 rating provide more than enough protection against splashes from any direction, making them ideal for spaces where water may occasionally be present.

IP65 Lighting: When You Need Extra Protection

IP65 is where things start to get more serious. This rating is designed to withstand direct water jets, making it ideal for areas that regularly come into contact with large amounts of water.

Installing lighting above your shower or bathtub? IP65 lights are the go-to choice. These are often seen as the sweet spot for bathrooms. Not overly specialised, but robust enough for the areas that need it most.

IP67 Lighting: Maximum Protection Explained

When it comes to bathroom lighting, you can never go wrong with an IP67 fitting… to an extent. These lights are designed to withstand temporary immersion in water, making them essential for Zone 0 applications.

This level of protection is impressive, yes, but it’s also very specific. In most standard bathrooms, you won’t need IP67 unless you’re installing lighting inside a bath or creating a bespoke, spa-like feature that needs lights to be immersed underwater.

In other words, using IP67 elsewhere isn’t harmful, but it can be unnecessary. These lights often come at a higher cost and can limit your design choices. Like wearing waterproof boots in the desert, it works, but it’s not always the most practical option.

IP44 vs IP65 vs IP67: Key Differences at a Glance

Let’s simplify the comparison.

Water Resistance

IP44: Splash-proof
IP65: Jet-proof
IP67: Immersion-proof

Typical Use Cases

IP44: General bathroom lighting, Zone 2 and beyond
IP65: Showers, wet rooms, Zone 1
IP67: Inside baths or showers (Zone 0)

Cost vs Protection

IP44: Most affordable, suitable for low-risk areas
IP65: Mid-range, ideal balance of cost and durability
IP67: Highest cost, reserved for specialist use

The key takeaway? More protection isn’t always better.

Which IP Rating Do You Actually Need? (Quick Decision Guide)

If you stepped back and looked at everything we’ve discussed so far, you’ll see that choosing the right IP rating is simply about location. Here’s a simple guide:

Inside the shower or bath — IP67
Directly above the shower — IP65
Around the basin or nearby walls — IP44
General ceiling lighting — IP44 or higher

This zone-based approach keeps things safe, compliant, and cost-effective.

Choosing the Right Bathroom Lights (Beyond IP Ratings)

IP ratings are only part of the bigger picture. Once you’ve got the safety side sorted, it’s time to think about how your lighting actually looks and feels.

Downlights vs Wall Lights

You can have either in your bathroom. It all comes down to the effect you want.

Choose downlights when:

You want a clean, modern look
You’re looking for overall illumination
Installing across all zones (with correct IP rating, of course)

Choose wall lights:

For mirrors and task lighting
To reduce shadows on the face
To add a decorative element

Pro Tip: Combining both through a layered approach usually works best.

Dimmable Options

Bathrooms aren’t just functional spaces anymore. They’re also places to unwind. That’s why dimmable options are popular since they let you brighten things up for your morning routine, and soften the mood for a relaxing bath in the evening.

Just make sure that you get compatible fittings, drivers, and switches.

Colour Temperature

Colour temperature or tone affects the mood and how your bathroom feels.

Warm white (2700K-3000K): Relaxing, spa-like atmosphere
Natural white (4000K): Bright, clean, practical for grooming

Bathroom Lighting Solutions from Simple Lighting

At Simple Lighting, there’s a full range of bathroom-ready options designed to meet UK safety standards without sacrificing style.

Whether you need IP44 lights for general areas, IP65 downlights for showers, or IP67 fittings for more specialised setups, there are options to suit every layout. From minimalist recessed designs to flexible LED strip lighting and modern wall fixtures, you have the choice of both practical and visually appealing options.

Get the Right Protection Without Overpaying

IP ratings might seem technical at first, but they’re really just a guide to making smarter choices.

By understanding bathroom zones and matching the level of protection to the level of exposure, you can create a lighting setup that ticks all the boxes: