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Comparison

Zone 1 vs. Zone 3 in bathrooms

Reviewed under Eng. Abdullah Al Balushi

“Not all your bathroom lights are the same... pay attention to the protection code!”

The problem

Using non-moisture-resistant fixtures in the shower

Technical explanation

Zone 1 (above the shower) requires IP44 or IP65. Zone 3 (outside the water area) only needs ordinary IP20

The result

Save money by not buying IP65 for the whole bathroom, and use it only where the risk is

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Common mistakeFace shadows in the bathroom

“Standing at the bathroom mirror and seeing dark circles under your eyes? It's not tiredness, it's your lighting!”

The problem
Placing a spotlight directly overhead at the bathroom mirror creates harsh shadows that make shaving or applying make-up difficult.
Technical explanation
Use diffused wall lighting (Wall Sconce) on both sides of the mirror or above it to prevent harsh shadows.
The result
Everyday comfort for the client and clear vision without annoying shadows.

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Common mistakeDotted light (Dots) on shelves

“You made luxurious marble shelves, and the strip's reflection shows up as dots? There goes the luxury!”

The problem
Installing a standard LED strip above glossy surfaces (marble or mirrors), which reflects the LED dots and looks cheap.
Technical explanation
Glossy surfaces need either a dot-free strip (COB LED) or an aluminium profile with a Diffuser that hides the dots completely.
The result
A smooth, continuous line of light that feels refined and luxurious.

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Common mistakeAiming light at glass and mirrors

“Got a spotlight hitting the windows at night? You're blinding your guests!”

The problem
Aiming lights at reflective surfaces such as glass creates distracting glare that blocks the view outside.
Technical explanation
Light should be aimed at walkways and opaque walls. Avoid aiming lights at windows at night entirely, so you can enjoy the view of the garden.
The result
A comfortable evening sitting and a clear view of the villa's garden without distraction.

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Common mistakeLighting windows and mirrors

“Lighting your mirrors and windows to make your home look luxurious? You're blinding yourself!”

The problem
Aiming lights directly at glass and mirrors bounces the light back as very uncomfortable glare.
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Glass doesn't reflect light softly like painted walls do, so lighting should be from the side or hidden behind the mirror (Backlit) to avoid discomfort.
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Hotel-style bathrooms and corridors, without visual discomfort.

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Common mistakeThe four bathroom Zones

“Electrically, a bathroom isn’t one area... it’s 4 zones! Getting this wrong causes short circuits.”

The problem
Installing non-sealed (IP20) fixtures in direct shower areas
Technical explanation
In engineering terms the bathroom is divided into 4 zones (Zone 0 for the tub, Zone 1 above the shower which needs IP44/IP65, and Zone 3 for dry areas)
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Protecting your family from electric shock, and choosing fixtures that last a long time without rusting

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Common mistakeDirect lighting in dressing rooms

“Your clothes look one colour in the wardrobe and another once you step outside?”

The problem
Using low-CRI lights and placing the light behind the person
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Dressing rooms need CRI 95 or above, with directional lighting inside the wardrobes or between the person and the mirror to avoid shadows and false colours
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Perfect elegance and choosing the right colours for your clothes every day

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Common mistakeLighting glass windows

“Have lights aimed at your living room windows? You've just blinded your guests!”

The problem
Aiming light at glass makes it act like a mirror, reflecting harsh light into the eyes and blocking the view of the garden.
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Light should be directed at walkways and solid walls (Wall Washer), completely avoiding reflective surfaces.
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A comfortable living room at night with a clear view of the garden.

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Common mistakeBuying IP20 lights for the bathroom

“Putting an ordinary spotlight in the shower ceiling and wondering why it gives shocks?”

The problem
Using non-sealed fittings in Zone 1, which is exposed to steam and water.
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The area directly above the shower needs fittings rated IP44 or IP65 to withstand steam.
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Protects your family from electric shock.

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Guide values; the final decision rests with a qualified engineer under the applicable code.

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