Questions from our customers

The "K" in light stands for Kelvin, the physical unit used to indicate the color temperature of light sources. It describes whether the light appears warm (reddish) or cool (bluish).

Warm white light is typically between 2700 and 3000 Kelvin, neutral white around 4000 Kelvin, and daylight white above 5000 Kelvin.

The Kelvin value helps to choose the most suitable light color for different purposes – for example, cozy light for living areas or cooler light for work environments.

Daylight typically starts at around 5000 Kelvin.

Light at 3000K appears warm white and corresponds to the color temperature of traditional halogen lamps.

4000K is considered neutral white light, which is brighter and cooler but still not equivalent to natural daylight.

Only from about 5000–6500K it is referred to as “daylight white”.

Daylight typically ranges between 5,500 and 6,500 Kelvin. This color temperature corresponds to natural midday sunlight and provides bright, neutral to slightly bluish light.

Both values fall within the warm white range. 2700K is a bit cozier, resembling traditional incandescent bulbs. 3000K is slightly brighter and more modern. Use 2700K for living rooms or bedrooms, and 3000K for kitchens or hallways.

3000 Kelvin refers to the color temperature of light. At 3000 K, the light is considered warm white, creating a cozy and comfortable atmosphere.

For dining rooms, warm white light (2700–3000 K) is ideal. It creates a welcoming and pleasant ambiance – perfect for meals and social gatherings.

Living room/bedroom: 2700–3000 K (warm white)
Kitchen/bathroom/study: 4000 K (neutral white)
Basement/garage/office: 5000–6500 K (daylight white)

Daylight white (around 6500 K) is much brighter and enhances focus – ideal for work areas. Chalk white is not a clearly defined value but is typically perceived as warmer. For cozy spaces, chalk white is usually more pleasant.

6500K appears brighter and bluer than 4000K, which is more neutral. While actual brightness depends on the lumen output, 6500K is often perceived as brighter due to the higher blue content.

Kelvin (K) is the unit used to measure the color temperature of light. The lower the value, the warmer (more yellow) the light. The higher the value, the cooler (more blue) the light appears.

2500 K is a very warm, yellowish light – similar to candlelight or old incandescent bulbs. It’s perfect for creating a cozy atmosphere in living or sleeping areas.

The designation 840 refers to a light color with 4000 Kelvin and a color rendering index (CRI) of at least 80. The first digit '8' indicates the CRI (80–89), and the '40' represents the color temperature in hundreds of Kelvin, meaning 4000 K. This light color is perceived as neutral white and is ideal for offices and workspaces.

The 'best' light color depends on the application: Warm white light (2700–3000 K) is suitable for cozy living spaces, neutral white light (3500–4500 K) for work areas, and daylight white (5000–6500 K) for medical or technical applications.

Light color describes the color temperature of light, measured in Kelvin (K). It affects the atmosphere and perception of a space – from warm white (reddish, cozy) to daylight white (bluish, factual).

Lumen (lm) is the unit for luminous flux and indicates how much visible light a light source emits in total – regardless of direction.

It depends on the application. For a cozy living room, 100–150 lumens per square meter are sufficient. In kitchens or work areas, 300–500 lumens/m² are recommended.

A classic 60-watt incandescent bulb corresponds to about 700–800 lumens. Modern LED bulbs with the same brightness need only about 8–10 watts.

1000 lumens is considered quite bright. It’s equivalent to about a 75-watt incandescent bulb and is ideal for hallways, kitchens, or work areas.

LEDs have high luminous efficacy and provide about 80–160 lumens per watt, depending on quality. Premium models can even exceed 200 lm/W.

It depends on the light source. For LEDs with 100 lm/W, 1000 lumens would require about 10 watts of power.

With an LED producing 100 lumens per watt, 3000 lumens would equal about 30 watts. With more efficient LEDs, even less.

A 50-watt LED spotlight is roughly equivalent to a 400-watt halogen spotlight and provides around 4000–6000 lumens, depending on efficiency.

A Philips LED E27 with 2700K and a 60-watt equivalent typically produces about 800–850 lumens.

An LED with the light output of a 60-watt bulb emits about 800 lumens while consuming only 8–10 watts.

Luminous efficacy describes how much light (in lumens) a lamp produces per watt of electrical power. It is a measure of the efficiency of a light source.

Depending on technology: incandescent bulbs ~10–15 lm/W, fluorescent lamps ~60–100 lm/W, LEDs ~80–200 lm/W.

Modern LEDs typically reach 100–160 lumens per watt, and top-tier models exceed 200 lm/W.

1 lux corresponds to one lumen per square meter. It measures illuminance – how much light hits a surface.

Recommended values: Living room 100–200 lux, kitchen 300–500 lux, bathroom 200–300 lux, office 500 lux, workshop 750–1000 lux.

Lumens measure total light output, while lux measures how much light reaches a specific area. For interior lighting, lux is often more relevant.

That depends on the area. On 1 m², 1000 lumens give 1000 lux; on 10 m², only 100 lux.

To achieve 10,000 lux on 1 m², you need 10,000 lumens. On 5 m², you would need 50,000 lumens.

Both are important. Lumens indicate total light, while lux measures how effectively that light illuminates a surface – crucial for work and living areas.

At dusk, illuminance is typically between 10 and 50 lux – depending on cloud cover and location.

The right lighting for your living room is achieved by combining multiple light sources. Use a mix of ambient lighting, targeted accent lights, and cozy background lighting. This way you create a harmonious light atmosphere that is both functional and inviting.

Choose your lighting according to the size and style of your living room. Make sure the lamps reflect both your interior style and your needs. A well-planned lighting design includes ceiling lights, floor lamps, table lamps, and targeted spots for art or shelves.

Warm, dimmable light (2,700–3,000 Kelvin) is best for the living room. This color temperature creates a relaxing and cozy atmosphere.

The brightness should be between 100 and 300 lux. Areas like the dining table or reading corner need more light, while the seating area can be more softly lit.

The best lighting combines multiple sources: a dimmable ceiling light, cozy floor lamps, and accent spots for functional and warm lighting.

The optimal lighting combines direct and indirect light sources. This way you achieve even brightness as well as targeted accents.

In an average-sized living room (about 20–25 sqm), aim for three to five light sources: ceiling light, floor lamp, table lamp, and accent lighting.

Good room lighting is created in layers: ambient light from the ceiling, task lighting at mid-height, and cozy accents on walls or the floor.

Pendant lamps, floor lamps, table lamps, and wall lights — they should match your style and complement the design of your living room.

A good rule of thumb is one spotlight per 1 to 1.5 square meters, depending on wattage and desired brightness. This avoids dark corners.

A swiveling wall light or a pendant light with warm white light works well above the couch. Make sure it doesn’t glare.

Lights with warm white bulbs (approx. 2,700 Kelvin) and a dimming option create a particularly cozy mood. Fabric or paper lampshades enhance this effect.

Use bright wall colors and indirect light sources that illuminate the ceiling or walls. Large mirrors also help reflect light and brighten the room.

Choose LEDs with 800–1,500 lumens and a warm white color temperature (2,700–3,000 Kelvin) to create a comfortable and inviting light.

Consider different zones in your living room (e.g. seating, dining, reading). Plan different light sources for each zone and pay attention to the height and direction of the lamps.

Around 100–300 lux is recommended for general living room lighting. For work or reading areas, add stronger light sources as needed.

Three to five light sources per room give you enough flexibility. Adjust the number of lamps to fit the size and layout of your living room.

The best fit are warm white, dimmable lamps with a simple design. They complement your furniture and create the right atmosphere.

Around 100–300 lux is recommended for general lighting, and up to 500 lux for reading or work areas.

Use warm white light (2,700–3,000 Kelvin), as it feels cozy and brings out natural colors of the interior.

The golden rule is to use at least three different light sources (ambient, task, and accent lighting) to create a balanced and comfortable mood.

Your lighting should be warm white (approx. 2,700–3,000 Kelvin) because this matches the natural evening light and is very relaxing.

The number of spots depends on the size of your living room. For 20 sqm, plan around 10–12 spots distributed evenly across the ceiling.

Indirect lighting that brightens the ceilings and walls, as well as light-colored floor lamps and wall washers, make rooms feel more spacious.

For a 20 sqm room you need approximately 2,000–3,000 lumens total, depending on the desired light level.

Create a balanced light plan with general, task, and accent lighting to achieve a well-lit, comfortable space.

Not necessarily, but they should harmonize in style and color to create a unified, cozy feel.

The best lighting is a combination of a central light source, several accent lamps, and optional indirect lighting for warmth and depth.

Consider the size, color, and style of your room. The lamp should be functional, dimmable, and visually appealing.

Spots are usually placed 80 to 120 cm apart for an even light distribution across the room.

Plan for around 100–150 lumens per square meter. For a 20 sqm living room, 2,000–3,000 lumens is a good target.

Lamps with warm white, diffused light and fabric shades provide a soft, cozy glow.

Ideally, a wall light is mounted 1.50 to 1.70 meters above the floor to give pleasant light without glare.

Use light wall colors, large mirrors, multiple light sources, and indirect lighting to make the room feel larger and brighter.