Learning luminaires and light that reacts to movement

Varo, a manufacturer and supplier of appliances and tools for DIY enthusiasts, has opted for a new LED continuous-row lighting system from Trilux for its 24,000 square meter logistics center in Lier, Belgium. With a power consumption of 250 and 400 watts, the old system had been responsible for a large part of the energy costs in the hall. A solution was therefore required that offered lighting quality and energy efficiency. The key features of the E-Line LED continuous-row lighting system include high efficiency, simple installation and a short payback period. Around 1,000 LED luminaires from the continuous-row lighting system now illuminate the aisles, halls and workstations of the logistics center. A light intensity of 200 lux was required in the peripheral areas, loading zones and areas are designed for up to 350 lux and the workstations for precision work are illuminated with 500 lux.

Intelligent and energy-saving lighting concept at Havi Logistics: the sensors detect the incoming forklift truck... Photo: Osram

With a ceiling height of 12 meters and the alternation of larger areas and narrower shelving aisles, the combination of narrow-beam and wide-beam E-Line luminaires was the ideal solution: This made it possible to achieve uniform, glare-free lighting while minimizing shadows.

The lighting is supplemented by a lighting management system. Motion detectors in the warehouse and aisles automatically switch the lights on when people are present. In the loading zone, the lighting group is controlled according to daylight. Special sensors measure the incidence and intensity of natural light and control the exact amount required for the desired lighting level. The use of the light management system further increases the energy efficiency of the E-Line.

Total energy costs reduced by around 60 percent

"We are extremely satisfied with the result of the lighting solution from Trilux," says Varo Purchasing Manager Nico de Troyer. "The new lighting has enabled us to save two thirds of our total energy consumption." In addition, there are further savings thanks to ease of maintenance and a long service life of around 50,000 operating hours with almost consistently high luminous efficacy.

As Willem Dammers, Managing Director of Trilux, emphasizes, the refurbishment also significantly improved the quality of light: "There was a lot of positive feedback from the staff. The LED light of the E-Line is perceived as pleasantly natural. The uniform and glare-free illumination of all work areas also contributes to a significant increase in visual comfort."

...and switch on the necessary aisle lighting section by section. Depending on the area of the hall, electricity savings of up to 80 percent can be achieved. Photo: Osram

According to Trilux, by converting the existing lighting in the high-bay warehouse, transshipment hall, gates and outdoor areas to efficient E-Line continuous-row lighting with intelligent lighting management, energy consumption can be reduced by around 71 percent. An energy efficiency example for a warehouse, in which 64 of the E-Line LED 13,000 lm luminaires with a system output of 108 W per luminaire are used, showed that 48,230 kWh can be saved per year and therefore around EUR 13,200.

Automatic dimming of the lights when daylight enters

The hall at Allgaier Werke in Uhingen was completely refurbished and the lighting was planned from scratch. Riva Lighting installed a total of 24 "Lucid arena pro 120 °" luminaires and 10 Lucid arena pro 60 ° luminaires. After installation at a height of six and 10 meters, an illuminance of 400 lux was measured.

With the further development of the Lucid arena pro series with a system output of up to 135 lm/watt and the use of high-performance optics, a high-bay luminaire is now on the market "that can meet almost any lighting requirement in the industrial sector", according to Riva Lighting.

The 16,000 square meter logistics center of Blanco GmbH in Bruchsal was equipped with the dimmable Lucid arena pro 30/60 ° DALI high-bay luminaire. By replacing the 400 watt HQL luminaires installed at a height of 12.5 meters, the lighting quality was improved to over 300 lux and energy savings of around 70 percent were achieved. The new luminaires also offer the advantage that when daylight enters through the hall's skylights, the luminaires are automatically dimmed in their output via sensors, resulting in even greater energy savings.

With motion detector - only areas currently in use are illuminated

All LED lighting solutions from the "Lumiqs by Züblin" brand provide lighting only where, when and at the intensity it is needed. All luminaires are equipped with a motion or presence detector to detect the presence of people, forklifts or trucks. Any luminaire that detects movement switches the light on automatically. The greatest savings can be achieved in industrial applications and logistics.

The four LED modules of the High Bay Lumiqs high bay luminaires can be individually aligned to the areas to be illuminated, be it a long corridor, a shelving aisle or a large area.

Renting instead of buying: RJ Lasertechnik relied on the services of Deutsche Lichtmiete for the realization of its new hall lighting. Photo: Deutsche Lichtmiete

Daylight plus LED for rent

RJ Lasertechnik, which processes metals with laser beams and operates plant engineering, broke new ground when converting to modern LED lighting: it opted for modernization via a rental model from the Deutsche Lichtmiete Group. The switch to an energy-efficient type of luminaire was unavoidable, as the HQL (mercury vapor lamps) luminaires have no longer been allowed to be sold on the market since 2015 according to the EU directive. Ralf Risters, Managing Director of RJ Lasertechnik GmbH, initially had a test set-up installed with LED ceiling spotlights and LED tubes from Deutsche Lichtmiete. The practical test was positive: Company management and employees found the new light, which is available as soon as it is switched on, to be very pleasant, bright and calm. In addition, the new LED lighting meant that a complete row of ceiling spotlights near the central aisle could be saved. Together with the daylight that enters the hall roof, the LED ceiling spotlights now provide complete illumination from both sides.

Neutral white luminaires with a light color of 5000 Kelvin are now used throughout the hall. "With our LED luminaires, our customers achieve a saving of at least 15 percent in overall lighting costs compared to the previous status, even after deducting rental installments," says Marco Hahn, Head of Marketing and Online Strategy at Deutsche Lichtmiete. Compared to conventional HQI and HQL lamps as well as T8 tubes, the new LED lighting system saves over 60 percent in energy consumption.

Once all the lights have been installed, they can be configured with little effort. To do this, they are set to learning mode by remote control. All walkways such as corridors and aisles are then walked through once in both directions. This enables each luminaire to get to know its direct and indirect neighbors. After the walk test, the rules can be defined, for example dimming for direct neighbors to 30 percent. Other rules and additional luminaires can be grouped together or switched off at any time.

With this self-learning, dynamic light group distribution and needs-based illumination, optimum task lighting is always achieved. During break times when no one is present in the room, the light is automatically switched off or dimmed down to a standby level of 30 percent, for example, if required.

With local illumination at 100 percent, the saving is 78 percent; with local illumination with lighting progression, the saving is 85 percent.

Sensor-controlled: LED lighting concept for 60 distribution centers

The international logistics service provider Havi Logistics is present in more than 30 European countries and supplies restaurant chains in the food service industry from over 60 distribution centers (DC). As part of a five-year sustainability initiative, all locations are to be converted to a standardized, energy-efficient lighting concept. "Our aim is to save energy costs through modern LED technology and the integration of intelligent lighting management," says Michael Buß, Technical Manager at Havi Logistics. The energy audits carried out by Osram Lighting Solutions throughout Europe identified potential savings of between 20 and 80 percent, depending on the area. This made it possible to develop a lighting concept for the various building and warehouse areas.