Guide: How to choose light bulbs for different spaces?

The basic parameters of light bulbs worth knowing

Before we start with detailed recommendations for specific rooms, it's worth knowing the most important parameters of light bulbs that define their properties:

● power (W) - In the case of traditional bulbs, higher power meant brighter light. However, in the LED world, power is no longer a clear indicator of brightness. Modern LED diodes consume much less energy while providing comparable brightness. For example, a 5W LED bulb can replace a traditional 60W bulb. It can differ depending on the LED bulbs from different series, which is why it is worth paying attention to light flux.

● light flux (lm) - lumens are the actual indicators of bulb brightness. A higher value provides brighter light. For example:

○ 450-800 lm: equivalent of traditional bulb 40-60W

○ 1100-1600 lm: equivalent of traditional bulb 75-100W

● colour temperatures (K) - this parameter defines the 'warm' or 'cold' light emitted. It is Measured in kelvins (K), and colour temperature creates the atmosphere of a room:

○ 2700-3000K: warm, yellow light, perfect for relaxation

○ 3500-4000K: neutral, white light, good for everyday activities

○ 5000-6500K: cold, blue light, increase concentration

● colour rendering index (CRI) - determines how accurately the light source reproduces the colours of the objects it illuminates. A CRI higher than 80 provides good colour reproduction, and higher than 90 provides very good reproduction – which matters in places where accurate recognition is important, such as in the kitchen or bathroom.

● energy efficiency - LED light bulbs consume up to 80% less energy than traditional incandescent bulbs while maintaining the same brightness, and their lifespan is 15-25 years with standard use.

With this information, we can laser in on the application of appropriate bulbs in specific rooms.

Kitchen – a place that requires precision

The kitchen is, above all, a place where precision and safety are of the utmost importance. Appropriate lighting in this area directly impacts the comfort of meal preparation.

● Recommended colour temperature: 4000K, which is neutral light, or 5000K, which is slightly cooler, provide good visibility and accurate colour reproduction of food products.

● Lighting solutions:

○ main lighting: evenly placed on the ceiling, preferably in several light points (neutral light)

○ workplace lighting: placed under the upper shelves, directly above the counters (neutral or cool light)

○ kitchen island lighting: preferably, pendant lamps installed at the appropriate height (neutral light)

● Important aspects:

○ a high level of real colour rendering (CRI> 90) for accurate assessment of product freshness

○ sufficient lighting for the workplace area (minimum 600 lumens)

Kanlux tip: Avoid bulbs that provide light with a noticeable colour shade (e.g., yellow, warm light, or colourful LED strips). In the kitchen, lampshade fittings that are easy to keep clean and resistant to grease and water vapor work well.

Bathroom - functionality and aesthetics

The bathroom requires a particular approach to lighting due to the humidity present in it. 

● Recommended colour temperature: 3000-4000K, which is neutral to slightly warm light, provides accurate color reproduction of the skin.

● Lighting solutions:

○ main lighting: evenly placed, preferably on the ceiling, provide good visibility

○ mirror lighting: the most important lighting in the bathroom, preferably placed on both sides of the mirror or around it, providing even face illumination without shadows

○ shower/bath lighting: soft, atmospheric lighting enhances bathing comfort

● Important aspects:

○ safety: all fittings should have an appropriate IP rating (minimum IP44)

○ high CRI: for proper make-up application and checking one's skin.

○ even lighting: eliminate unwanted shadows on face

Kanlux tip: In the bathroom, it’s worth using a solution that allows you to choose different color temperatures – cold light to wake you up in the morning, and warm light at night for relaxation. 

Corridor and hall - first impression

Even though we only pass through these spaces, appropriate lighting in a hall or corridor is of great importance—not only functionally but also in creating a strong first impression.

● Recommended colour temperatures: 3000-4000K, neutral to slightly warm creating a friendly, welcoming atmosphere.

● Lighting solutions:

○ main lighting: preferably scattered, evenly illuminating the entire space,

○ additional lighting: emphasizing decorative elements such as paintings, photos, or mirrors,

○ functional lighting: eg. illuminated hangers, wardrobes.

Kanlux tip: In corridors and halls, it is worth using motion or twilight sensors that automatically turn on the light when someone enters the room. This solution is not only convenient but also economical, as the light is on only when needed.