Case study · ÖVB Arena Bremen · Hall 7

LED step lighting for the retractable grandstand at ÖVB Arena Bremen.

The retractable grandstand needed new step lighting while remaining fully operational when extending and retracting. We coordinated SL2 profiles, guided moving cables, plug-in connections and controls with the grandstand mechanics.

SL2 with two lighting functions24 V DCDMX + emergency powerCable carriers & plug-in controls
Retractable grandstandLighting accommodates full extension and retraction
SL2Blue edge lighting + white tread illumination
A/B circuitsTwo separate outputs per control unit
Removable control equipmentPowerCON, XLR and modular control boxes
The challenge

The lighting design must account for every grandstand movement.

Conventional fixed wiring could have restricted the mechanics or put unnecessary strain on cables. The upgrade therefore had to be planned as part of the moving grandstand from the outset.

The original lighting was removed and replaced with a project-specific LED system. Beyond the lighting effect, the decisive considerations were secure mechanical mounting, guided cable routes, plug-in transitions and detachable control equipment.

MECHANICS
Attach profiles directly to metal stepsWith no existing mounting channel, fixing points had to be prepared and threads tapped.
MOVEMENT
Guide moving cables reliablyCable carriers keep wiring within a defined path during extension and retraction.
EQUIPMENT
Remove controllers before retractionPower supply and dimmer boxes remain accessible and do not obstruct grandstand movement.
OPERATION
Repeatable plug-in connectionsPowerCON and XLR connections make disconnection and reassembly straightforward and clearly defined.
Before / after

From original lighting to an integrated LED solution.

The new design fulfils two purposes: blue light clearly outlines the step edge, while a second lighting function directs white light down and forward onto the tread.

BeforeÖVB Arena Bremen retractable grandstand LED step lighting: Fahrbare Tribüne in der ÖVB Arena Bremen vor der Erneuerung der Stufenbeleuchtung
Original step lightingOriginal arrangement before removal and LED conversion of the grandstand aisles.
AfterÖVB Arena Bremen retractable grandstand LED step lighting: Neue LED-Stufenbeleuchtung an der fahrbaren Tribüne der ÖVB Arena Bremen
Step edge and tread illuminated separatelyBlue edge lighting for orientation; white light on the tread.
ÖVB Arena Bremen retractable grandstand LED step lighting: Metallstufe der fahrbaren Tribüne vor der Montage der LED-Stufenprofile
Metal step before fitting the profile
Mounting on the structure

No existing profile channel: the metal steps had to be prepared.

The steps and edges were entirely metal, with no suitable channel for the new SL2 profile.

Fixing points were therefore prepared to suit the project. Holes were drilled and tapped, and the profiles then screwed directly to the step edges, achieving a mechanically sound integration.

01
Check step geometryCoordinate the metal construction with the intended profile position.
02
Prepare the fixingsDrill and tap fixing holes for direct screw mounting.
03
Install SL2Fasten the profile to the step edge and align both lighting functions.
ÖVB Arena Bremen retractable grandstand LED step lighting: Panorama der ÖVB Arena Bremen mit beleuchteten Aufgängen der fahrbaren Tribüne
The light is visible. The real engineering is underneath.The aisles remain clearly visible in use, while the entire technical installation must accommodate every grandstand movement in a controlled manner.
ÖVB Arena Bremen retractable grandstand LED step lighting: Energiekette unter der fahrbaren Tribüne zur geschützten Führung der Anschlussleitungen
Moving cable routing beneath the grandstand
Moving infrastructure

Cables designed to follow every grandstand movement.

Beneath the grandstand, cables run in cable carriers. This keeps their route defined as the structure extends or retracts and protects against tension, kinks and uncontrolled movement.

STEP
SL2 on the metal edgeTwo independent light functions for edge and tread.
CABLING
Guided in cable carriersThe cables follow the mechanical movement in a controlled, traceable manner.
CONNECTION
XLR connectors at the aislesCompact metal enclosures provide defined plug-in connection points.
POWER
PowerCON to the control unitDetachable equipment can be disconnected before the grandstand retracts.
CONTROL
DMX + preset base brightnessBrightness remains centrally controllable and can be preset for operation.
BACKUP OPERATION
Integration into existing power infrastructurePower supply technology was designed for safety-related and emergency power operation.
Control for each aisle

Detachable, plug-in and clearly organised.

The power supply and dimmer boxes are removed before the grandstand retracts. On reassembly, the same connections must be restored quickly and reliably.

ÖVB Arena Bremen retractable grandstand LED step lighting: Geöffnete Steuerungsbox mit zwei Netzteilen und zwei DMX-Dimmern für die fahrbare Tribüne
Control box with power supplies and DMX dimmers
01
Dedicated control box for each aisleTwo DMX dimmers and two 24 V power supplies per unit.
02
PowerCON power connectionThe entire control assembly can be quickly disconnected and removed before retraction.
03
Two XLR connections at each aisleCompact metal enclosures establish defined plug-in transitions.
04
A/B separationTwo separate outputs provide the intended division of step-lighting circuits.
05
Accessible for servicingDimmers, power supplies and connectors can be inspected or replaced individually.
ÖVB Arena Bremen retractable grandstand LED step lighting: LED-Stufenprofil SL2 mit zwei getrennten Lichtfunktionen
Step profile used

SL2: two lighting functions in one profile.

In Bremen, SL2 performs two distinct functions: an upper blue lighting zone marks the step edge, while a second zone projects white light forward and downward onto the tread.

The profile is only part of the story. Mounting, cabling, controls and grandstand movement had to be designed as one system.

24 V DCtwo separate lighting zonesdirect mounting on metal stepssuitable for retrofit
The result

Lighting that works with the grandstand, not against it.

The new step lighting combines clear orientation with technical infrastructure designed around a moving grandstand. Profiles, cable carriers, plug-in connectors and removable controls operate as one coherent system.

For retractable grandstands, the light output is only one part of the requirement. The installation must withstand repeated movement, disconnection, reconnection and servicing. Those everyday operational needs shape the engineering solution.

Frequently asked questions

Step lighting for retractable grandstands.

The right design depends on grandstand mechanics, existing cable routes and operational requirements.

Why were the cables installed in cable carriers?

The grandstand extends and retracts completely. Cable carriers guide the wiring along a defined path and protect against tension, kinks and uncontrolled movement.

How are the controls disconnected before retraction?

The control units are removable. Power is disconnected via PowerCON; compact metal enclosures with XLR connections are installed at the aisles.

Which step profile was used at ÖVB Arena?

The SL2 LED step profile was used. One lighting zone marks the edge in blue, while the second casts white light forward and downward onto the tread.

Can this design be adapted to other retractable or telescopic grandstands?

In principle, yes, but the design must be adapted to the specific mechanics. Mounting, movement paths, cable routing, disconnect points, controls and backup operation all need consideration.

Retractable or telescopic grandstand?

A photo of the structure is enough for an initial assessment.

Show us the aisles, direction of movement and existing equipment. We will tell you what else is needed to evaluate a suitable step-lighting system.