The ABC of Light


Accent lighting describes the special orientation of luminaires towards individual objects such as furniture or room areas. Antique chests of drawers, pictures or the cosy reading corner can be accentuated with accent lighting. Using spotlights or spots, rooms can also be divided into different areas and individually illuminated. The dining room can be optically separated from the living room in the living and dining room with a sophisticated lighting concept using suitable luminaires.


Bathroom luminaires are exposed to special requirements on a daily basis and must also withstand high levels of moisture. Bathroom luminaires should have a degree of protection of at least IP44 to prevent hazards from water and electrical lighting. A higher degree of protection of IP65 or IP67 is required in the vicinity of a shower or bathtub. It is recommended that the installation be carried out by a specialist.

The beam angle describes the light cone generated by a luminaire in a room and evaluates the illumination of surfaces. It provides information on the angle at which the light is distributed. The distance between the illuminant and the illuminated object must be taken into account. The greater the distance between the object and the illuminant, the larger the light cone produced. The light intensity is brightest in the centre of the light cone, and diminishes towards the edges.


Sufficient basic lighting or general lighting is the basis for interior lighting. A centrally positioned ceiling luminaire or several recessed ceiling luminaires provide uniform and uniform lighting for the room without accent lighting. The wide light distribution provides initial orientation and an overview of the room.


Luminaires with motion detectors have an electronic sensor that reacts to movements in the immediate vicinity and automatically switches the luminaire on. Lamps with motion detectors are particularly suitable for outdoor installations and house walls. The luminaire's automatic function brightly illuminates the path, thus reducing the risk of tripping on uneven terrain or falling over objects in the garden.


We spend a large part of our daily lives at work. Sometimes we even sit in the office until dusk. Well thought-out and bright office lighting is essential to maintain performance and concentration as far as possible and to protect the eyes as far as possible when working with computer screens. Office lighting should achieve a certain illuminance level but provide the necessary brightness free of glare. Optimum lighting conditions can be created by combining indirect and direct light.
Neutral white light in the range from 3,300 to 5,300 Kelvin is perceived as very pleasant in addition to natural incident daylight when working at a computer. Daylight white light above 5,300 Kelvin is recommended to maintain sufficient brightness even at dusk or in the evening. Optimum lighting conditions are provided by dimmable office luminaires which provide the necessary bright office lighting depending on the natural incidence of daylight.

The operating voltage is measured in volts. It indicates which voltage the luminaire requires in order to be put into operation. The usual operating voltage of luminaires is 230V.

Low operating voltage
In living rooms or bedrooms, dimmable luminaires create cosy light while reducing the operating voltage. This leads to an increase in the service life of the lamp, but the energy efficiency is geared to the optimum voltage value for the luminaire and thus decreases. To counteract this, in rooms with permanently dimmed light, luminaires with a lower wattage can be used.

High operating voltage
If the specified operating voltage is exceeded, the luminaire emits brighter light, but the service life of the lamp drops considerably. If the operating voltage is already exceeded by five percent, the service life of the luminaire is reduced by 40 %.

Outdoor luminaires provide sufficient illumination in the dark and create security around your home. Path luminaires or bollard luminaires are particularly flexible and can be used to illuminate paths, driveways or stairs to minimise tripping hazards. Wall luminaires or outdoor spotlights serve as brilliant design elements for the house wall. Floodlights with motion sensors automatically illuminate the way to your front door and around your garden. Uninvited guests are already deterred by the clever lighting concept in front of your home. In order to guarantee that the outdoor luminaires will function for a long time, they should be weatherproof and have the necessary IP protection, which indicates protection against dirt and moisture.
Depending on the location, the IP protection class can be classified as follows:
IP23 - the luminaire is protected against water spray, e.g. recessed spotlights on front door and canopy
IP44 - the luminaire is splash-proof, e.g. luminaires on a house wall
IP65 - the luminaire is protected against water jets, e.g. recessed floor luminaires protected by canopy
IP67 - the luminaire is waterproof, e.g. free-standing luminaires on paths
IP68 - the luminaire is waterproof under water, e.g. pond luminaires


The use of recessed floor luminaires in indoor and outdoor areas offers visually appealing lighting options. The upper end of the recessed floor luminaire should be as flush as possible with the floor to eliminate tripping hazards.
For recessed floor luminaires for outdoor use, special attention must be paid to IP protection, which indicates protection against moisture and dirt. With the right installation and design, attractive plays of light can be created indoors and outdoors around the house and garden.


A brightly lit study promotes efficient and efficient work. The necessary basic brightness is provided by ceiling lamps, pendant luminaires or LED panels that are particularly suitable for offices. It is important to ensure that work is as glare-free as possible. Rotating and swivelling desk luminaires that can be adjusted to suit requirements and provide sufficient brightness at the table are suitable for providing a sufficiently well-lit work surface.

Efficient work requires bright and adequate interior lighting to maintain concentration and performance for as long as possible. The colour of the light plays a key role in the choice of interior luminaires. LED lamps in the range from 3,300 to 5,300 Kelvin produce a neutral white light which is also very pleasant for working at a PC. With a combination of direct light, e.g. from a centrally positioned ceiling luminaire for basic lighting, and indirect light from wall luminaires or desk luminaires, optimum lighting conditions are created which can best prevent rapid eye fatigue and loss of concentration.