And why PETRA® is the right choice for sophisticated bathroom lighting.
The right light is not a detail. It is the foundation.
Especially in the bathroom, lighting influences far more than brightness alone. It shapes perception, functionality, and atmosphere – every day, morning and night. Bathroom lighting should therefore not be based on trends, but on real requirements for everyday use, precision, and wellbeing.
The bathroom – one of the most sensitive rooms in the home. The bathroom is a special space.
This is where the day begins. And where it ends.
It is a place of routine and calm at the same time. Function, perception, and atmosphere meet here directly. That is why lighting design in the bathroom is particularly demanding.
Poor lighting can distort skin tones, create harsh shadows, or make the space feel unsettled. Good lighting, on the other hand, supports without drawing attention to itself.
Light colour in the bathroom: more than just Kelvin values
With PETRA® light colour and output can be individually adjusted – tailored to usage, time of day, and personal needs.
The choice of the right light colour directly affects how we perceive ourselves in the mirror.
2700 Kelvin – warm and calming
2700 Kelvin feels soft, warm, and relaxing. Ideal for wellness areas, evening moods, and quiet moments in the
bathroom.
3000 Kelvin – balanced and natural
3000 Kelvin creates a natural, homelike atmosphere. It is considered the classic choice for high-quality bathrooms, combining functionality with pleasant light quality.
4000 Kelvin – clear and precise
4000 Kelvin is neutral, clear, and functional. Especially suitable for tasks such as shaving or applying makeup, or wherever maximum visual clarity is required.
High colour rendering for natural skin tones
PETRA® offers consistently high colour rendering with CRI 90.
This means:
• natural skin tones
• authentic material appearance
• no colour distortion
In the bathroom, high colour rendering is not a luxury – it is essential.
PETRA® – a linear standard luminaire with precision
PETRA® is designed as a linear standard luminaire and is available in three standard lengths. Additionally, it can be custom-made to the millimetre – for mirrors, niches, or individual architectural situations. The result is a luminaire that integrates into the space instead of dominating it.
Reduced in design. Precise in light.
PETRA®  stands for:
• restrained design
• precise light distribution
• reliable quality in daily use
Good lighting does not need to be louder. It needs to be better. Quality is not shown in effect, but in everyday life.
Light that works – every day
In the mirror.
In the look.
In the feeling.
With PETRA® bathroom lighting is created that supports rather than stages.
