Explosion Proof Light Concept Used in a German Supermarket Lighting Project

This project was carried out in 2024 at a large home goods supermarket in Germany. The building has a high ceiling and long, continuous aisles, with shelving reaching close to the lighting level in several areas. From a technical point of view, this kind of space is less about decorative lighting and more about consistency, reliability, and long operating hours.

The existing lighting system had been in use for many years. Although it was still functional, brightness was uneven and maintenance frequency had increased. Some luminaires showed visible aging, especially in areas with higher daily operating time.

Initial Assessment on Site

During the first inspection, the main issue was not total brightness. Measurements showed that some points were already above required levels. The real problem was distribution.

Light was concentrated directly under fixtures, while shelf sides and aisle intersections remained noticeably darker. This caused visual discomfort for both customers and staff, especially during long shifts.

From an engineering perspective, the supermarket requested a solution following similar logic to explosion proof light design: stable electrical structure, predictable thermal behavior, and minimal failure risk over time, even though the space itself was not classified as hazardous.

Selected Lighting System and Layout

After comparing several options, the project team chose the SEEKINGLED HLS Series Linear LED Light Trunking System, model XJ-HLS6980-1575.

A total of 812 units were installed. The linear trunking layout allowed the luminaires to follow the aisle structure instead of forcing fixed-point lighting into an unsuitable geometry. This reduced overlap and eliminated unnecessary shadow zones.

The system was configured to achieve an average illuminance of around 600 LUX, which met the supermarket’s internal requirements without pushing output higher than necessary.

Installation and Commissioning

Installation was done section by section to avoid closing the store completely. This required flexible wiring routes and quick mechanical connections, which the trunking system supported without modification.

After commissioning, measurements confirmed stable brightness across aisles, with no extreme peaks. Glare was reduced compared to the previous setup, particularly near tall shelving.

The electrical performance remained stable during extended operating hours, which was one of the original goals based on explosion proof light design thinking.

Operational Feedback

Store management did not focus on the lighting visually at first, which is usually a good sign. The feedback came later, mainly related to lower maintenance calls and improved visibility when restocking products.

Energy consumption dropped compared to the old system, but more importantly, the lighting behavior became predictable. There were no complaints about flicker or uneven brightness after installation.

Project Conclusion

This supermarket project shows that concepts often associated with explosion proof light—durability, stability, and controlled thermal performance—are also valuable in commercial retail environments.

The LED linear trunking system provided a practical solution for a space that required long operating hours, even illumination, and low maintenance. As part of SEEKINGLED’s broader product range, including LED high bay lights, LED flood lights, LED street lights, garden LED lights, sports stadium LED lighting, LED tri-proof lamps, and linear LED lights, the HLS Series was selected for real operational reasons rather than appearance alone.

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