5 Bathroom Lighting Mistakes to Avoid
By KimberTec Design Team
Lighting can make or break your bathroom. Even the most beautiful tile and fixtures can look dull or harsh with poor lighting. Here are the most common mistakes and how to fix them.
Mistake #1: Relying on a Single Overhead Fixture
The Problem: A single ceiling light creates shadows on your face, making grooming tasks difficult and unflattering.
The Solution: Layer your lighting with three types:
- Ambient (general): Ceiling fixture or recessed lights for overall illumination
- Task lighting: Vanity lights at face level for grooming
- Accent lighting: Under-cabinet, in-niche, or decorative fixtures for ambiance
Mistake #2: Positioning Vanity Lights Incorrectly
The Problem: A single fixture above the mirror creates shadows under your eyes, nose, and chin—terrible for makeup application or shaving.
The Solution:
- Best: Sconces on either side of the mirror at eye level (60-66" from the floor), spaced 36-40" apart
- Good: A horizontal bar fixture above the mirror with multiple bulbs (48"+ wide for double vanities)
- Avoid: A single downlight directly overhead
Mistake #3: Using the Wrong Color Temperature
The Problem: Bulbs that are too cool (blue-white) make you look washed out; bulbs that are too warm (yellow) distort skin tones.
The Solution: Choose bulbs with a color temperature of 2700K-3000K (soft white to warm white) for vanity lighting. This mimics natural daylight and provides accurate, flattering light for grooming.
Pro Tip: Look for bulbs with a high CRI (Color Rendering Index) of 90+, which shows colors more accurately.
Mistake #4: Inadequate Brightness (Not Enough Lumens)
The Problem: Dim lighting makes the space feel dingy and makes tasks like applying makeup or shaving difficult.
The Solution: Bathroom lighting guidelines:
- Powder room (25 sq ft): 2,000-3,000 lumens total
- Full bathroom (75 sq ft): 4,000-6,000 lumens total
- Large primary bath (120+ sq ft): 7,000-10,000+ lumens total
- Vanity/mirror area specifically: 75-100 lumens per square foot
Quick Reference: A 60W incandescent bulb produces about 800 lumens. With LED bulbs, you'll only need 8-12W to achieve the same brightness.
Mistake #5: Forgetting Dimmers and Smart Controls
The Problem: Bright task lighting is great for mornings, but harsh for nighttime visits or relaxing baths.
The Solution: Install dimmer switches to adjust lighting for different moods and times of day. Even better: smart bulbs or switches that can be controlled via phone or voice, with preset scenes like "Morning Routine" or "Spa Mode."
Bonus Tips for Perfect Bathroom Lighting
1. Don't Forget the Shower
Install a waterproof recessed light (rated for wet locations) inside the shower or tub area. This improves safety and creates a luxurious spa-like feel.
2. Consider Backlit Mirrors
LED mirrors with integrated backlighting provide excellent, even task lighting while adding a modern, high-end look.
3. Use Ventilation Fans with Lights Wisely
If you have a combo fan/light, make sure the light component provides adequate brightness—many don't. You may still need additional fixtures.
4. Add Accent Lighting
LED strips under floating vanities, inside niches, or around tub edges create a soft, hotel-like glow perfect for relaxing baths.
5. Choose Damp/Wet-Rated Fixtures
Bathrooms are humid environments. Make sure all fixtures are rated for damp locations (or wet locations for shower/tub areas) to ensure safety and longevity.
The Perfect Bathroom Lighting Formula
For a well-lit, versatile bathroom:
- Ambient: Recessed ceiling lights or a flush-mount fixture
- Task: Sconces or a bar light at the vanity
- Accent (optional): Under-cabinet LEDs, niche lighting, or a chandelier
- Controls: Dimmer switches or smart bulbs
- Bulb specs: 2700-3000K, 90+ CRI, adequate lumens for space size
Designing a bathroom remodel? Schedule a free consultation and we'll help you create a lighting plan that's both functional and beautiful.


