Light sources – the heart of every lighting system

When light begins to take shape and spaces come alive

Light sources are the heart of every lighting solution. They determine how a room feels, how colors appear, and how pleasant the light is for the eyes. Whether decorative filament LEDs for living spaces, powerful light sources for workspaces, or smart light sources with state-of-the-art technology – choosing the right light source influences not only the atmosphere but also energy consumption, lifespan, and comfort.

At Licht-Kraus, you'll find only high-quality light bulbs from leading manufacturers. Each light source is carefully selected to guarantee long-lasting quality, reliable light output, and a stylish effect. This text explains what's important when choosing light bulbs: light color, color rendering, energy efficiency, technology, sockets, applications, sustainability, and maintenance. A comprehensive FAQ section is provided at the end.

Light quality – the decisive factor for well-being

Good lighting creates atmosphere, provides clear vision, and offers helpful brightness for orientation. Poor lighting quality, on the other hand, can feel cold, tiring, or distort colors.

Important aspects

• pleasant light color instead of harsh, restless light

• High color rendering index for natural colors

• sufficient brightness for the purpose of the room

• Uniform light output without flickering

Warm white light creates a cozy atmosphere — ideal for living rooms, bedrooms, or dining areas. Neutral white light supports concentration and activity — perfect for kitchens, bathrooms, or offices. Daylight-like light is ideal for workshops, studios, and work environments with high visual demands.

Energy efficiency – modern lighting saves electricity

Modern LED light bulbs offer maximum light output with minimal energy consumption. Compared to old incandescent bulbs, they can save over 80% energy and last for many years before needing to be replaced.

Advantages

• Low power consumption at high brightness

• Significantly longer lifespan than older technologies

• Less heat generation — safer and more efficient

• lower operating costs over the entire service life

Good light bulbs are not just convincing today — they are an investment for the future.

Technology & Operation – modern solutions, full control

Light bulbs are no longer just on/off devices. Modern versions offer convenience and flexibility.

Technical features

• Dimmable models for flexible lighting moods

• smart light bulbs with app or voice control

• Memory functions that save the last setting

• various light modes from warm to daylight white

This makes light intuitive, comfortable and adjustable at the touch of a button.

Materials & fittings – suitable for every light fixture

Every light fixture needs the right light bulb. Not only the socket type is important, but also the bulb's design.

Important socket types

• E27 – classic for living spaces

• E14 – more compact for smaller lights

• GU10 – for spotlights and floodlights

• G9, G4 and special sockets – for design and furniture lighting

Design

• classic LED lamp

• LED filament for decorative applications

• Reflector lamps for directional light

• Rod- and tube-shaped LEDs for architectural or commercial applications

This ensures that every lighting concept remains flexible — and every light shines in optimal quality.

Areas of application – Light for every room

The ideal lighting effect varies depending on the room.

Recommendations by room

• Living room: warm white, cozy lighting effect, dimmable

• Kitchen & Bathroom: neutral white, clear, bright, good color rendering

• Office & Home Office: neutral white, focus-oriented, glare-free

• Outdoor areas: weatherproof technology, appropriate protection class

A coherent lighting concept begins with the right light source — tailored to atmosphere and function.

Sustainability – durable, environmentally friendly, meaningful

A good light bulb saves energy, lasts a long time and conserves resources.

Sustainable benefits

• long service life instead of frequent replacement

• High efficiency with low heat generation

• Reduced environmental impact through durable technology

• lower consumption of electronics and raw materials

High-quality light sources are a conscious decision — for the environment, your wallet, and quality.

Care & Lifespan – Preserving Value

LED light bulbs also benefit from proper handling and care.

Tips

• Change only when switched off and cooled down

• Regularly clean lampshades and housings gently.

• Ensure good ventilation for LED light bulbs

• Ensure a clear surface when using a visible light source.

This ensures consistent light quality and long component lifespan.

FAQ – Light bulbs

1. Which light color is the right one?
Warm white creates a cozy atmosphere, neutral white promotes concentration, and daylight white supports precise work.

2. What does CRI / color rendering mean?
A high CRI value ensures that colors appear natural — important for living spaces and work areas.

3. Are LED light bulbs really better?
Yes — they save energy, last longer, generate less heat and provide more pleasant, modern light.

4. Are all LEDs dimmable?
No — when buying, explicitly look for dimmable models.

5. How long do LED light bulbs last?
Often between 20,000 and 50,000 operating hours — depending on quality and area of ​​application.

6. Which version do I need?
The light fixture determines the socket type — the most common are E27, E14 and GU10.

7. What do I need to consider regarding visible light sources?
Filament LEDs are perfect for open luminaires and decorative areas.

8. Can I use LED light bulbs in old sockets?
Yes — modern retrofits usually fit without any technical modifications.

9. How do I dispose of old light bulbs?
LEDs belong at the recycling center, not in the regular trash. Incandescent light bulbs can go in the household waste.

10. What should I pay attention to when buying?
Lumen (brightness), color temperature, CRI, efficiency, dimmability and socket — quality pays off.