The Isollux SOFFITO SFO is a high-output LED high-bay luminaire specifically engineered for demanding hygiene-critical environments, including food processing facilities, pharmaceutical manufacturing, cleanrooms, laboratories, inspection areas, wet rooms and temperature-controlled environments.
Combining high-performance LED technology with a lightweight, rust-free and hygienic construction, SOFFITO SFO delivers high luminous output, low-glare uniform illumination, long service life and flexible installation options. Its robust design provides reliable performance in ambient temperatures from –40°C to +50°C, subject to the specified installation configuration.
The luminaire is designed around long-term serviceability, enabling LED, driver and top-plate replacement through Isollux's innovative Cartridge Solution without replacing the complete luminaire or compromising the hygiene installation.
High-Performance LED Technology
SOFFITO SFO is available in four standard power configurations, with colour temperatures from 4,000K to 7,000K and CRI 85/95 options.
- 100 W – 15,200 lm
- 120 W – 18,240 lm
- 150 W – 22,800 lm
- 180 W – 27,360 lm
The XE chipset provides an efficacy of up to 152 lm/W at CRI 85 and 5,000K.
Isollux XE dual-die LED chipsets are conservatively operated to optimise service life. The published performance provides L80 (B0) >102,000 hours across the specified ambient temperature range, supporting a service life of more than 10 years in continuous 24/7 operation.
Hygienic, Durable Construction
SOFFITO SFO features a food-grade PBT/PCT engineering blend that forms a lightweight, rust-free monocoque body with high mechanical strength, chemical resistance and dimensional stability.
Its seamless, low-profile moulded frame has been developed specifically for hygiene-critical environments. The easy-clean construction is resistant to sanitisers and eliminates seams and joints where dirt and contamination can accumulate.
The luminaire's hygienic construction makes it suitable for demanding applications where cleanliness, corrosion resistance and reliable operation are essential.
IP66 Protection and Moisture Management
SOFFITO SFO provides IP66 protection from the room side, making it suitable for food-processing, cleanroom manufacturing, wash-down and wet-room applications.
Above the ceiling, the luminaire uses a free-breathing construction that allows moisture to escape rather than becoming trapped within the fitting.
Each LED board incorporates a protective coating designed to safeguard the PCB and LED components against chemical and moisture exposure. In the event of accidental flooding, the top section can be removed, flushed with distilled water and allowed to dry before the luminaire is re-energised.
Multi-Layer Electrical Protection
SOFFITO SFO incorporates multiple electrical protection measures designed to improve reliability and component life.
Drivers are factory de-rated to ≤80% of maximum output, reducing component stress and supporting extended service life.
Available protection features include:
- IP66–IP67 potted enclosures and connections
- Flicker-free operation in accordance with EN 61000-3-3
- Under-voltage protection
- Over-voltage protection
- Short-circuit protection with automatic recovery
- Over-temperature protection
- Wide input voltage range: 90–305 VAC
- Surge protection: 6 kV differential mode / 10 kV common mode
- Optional Class I, Division 2 rated drivers for hazardous locations
Flexible Lighting Controls
SOFFITO SFO can be configured for a wide range of lighting-control requirements.
Control options include:
- Dual-circuit switching
- DALI scheduling
- DT8 tunable white
- Circadian lighting
- Custom spectrum configurations
These options make SOFFITO SFO suitable for applications ranging from laboratories and animal housing to cleanroom inspection areas and other specialist environments requiring controlled illumination.
Advanced Spectral Control
For pharmaceutical, laboratory and cleanroom applications where products or processes are sensitive to specific wavelengths, SOFFITO SFO can be configured with custom LED combinations for precise spectral and wavelength control.
Isollux Ambrite™ amber LEDs can be combined with standard white light within a single luminaire to provide controlled illumination for light-sensitive APIs, products and processes.
Extreme Low-Temperature Applications
SOFFITO SFO supports low-temperature applications within its published ambient range and can be configured for freezer and cold-room installations.
The surface-mount installation approach helps maintain the integrity of the PIR panel vapour barrier while avoiding the creation of a thermal pathway through insulated ceilings.
An optional dual lens can further minimise thermal exchange through the luminaire, helping to reduce condensation near evaporators and potentially reduce HVAC loads in temperature-controlled environments.
Installation Solutions
Isollux provides approved installation kits engineered for task-critical environments. With more than fifteen years of installation experience, these systems are designed to simplify installation, maintain correct alignment and sealing, provide service access and protect the long-term integrity of the lighting system.
Approved installation supports the full 10-year warranty. Installation without an approved kit may limit warranty coverage.
Recessed Mounting
Where access from above is available, the recessed mounting system provides secure installation using stainless-steel fire flashing with either open-frame or walk-safe covers.
The complete luminaire and associated components can be removed and maintained from above, simplifying long-term maintenance in areas with complex machinery or restricted access below the ceiling.
Surface Mounting
Where ceiling penetrations are impractical, including concrete ceilings and freezer applications, the surface-mount system provides a simple and secure installation solution.
Surface-mount kits are available in 304 or 316 stainless steel, with powder-coated or epoxy-white finishes. Configurations are available for internal or remote driver mounting.
Internal driver configuration: 150 W maximum, subject to ambient conditions.
Seismic Safety
Each corner mounting point incorporates a 316 stainless-steel brace connecting the fixing bolt back to the main frame through a rubber damper and secondary seismic tether.
This provides an additional load path designed to improve installation security during extreme movement and seismic events.
IP66 Valley Seal
SOFFITO SFO incorporates an IP66 dry-seal system for installation on flat, non-porous surfaces, requiring only 3 Nm fixing torque and avoiding the need for silicone as the primary seal.
The convex profile eliminates dirt-catching ledges, while the integrated valley provides a channel where wet-cure silicone can bridge construction gaps or material joins.
Contractor torque-head kits are available to help maintain consistent installation torque.
Cleanroom Integration
The lightweight construction simplifies installation into cleanroom ceiling systems.
Recessed and surface-mounted configurations are designed to maintain room integrity while providing long-term access for service and maintenance.
Custom configurations can also incorporate UV systems for specialist applications.
Cartridge Service & Long-Term Sustainability
SOFFITO SFO is designed for long-term serviceability rather than complete luminaire replacement at the end of the LED or electronic component life.
The innovative Cartridge Solution allows the LED, driver and top plate to be replaced in minutes without replacing the complete luminaire or breaking the hygiene seal.
The original SFO can therefore be upgraded to the latest available performance while retaining the installed luminaire and accessories.
The Soffito SFK Long-Service Upgrade Kit provides a dedicated solution for this purpose.
This approach helps reduce waste, extend the useful life of the installed system and maintain lighting performance over time.
Fully Serviceable Assembly
SOFFITO SFO is built around serviceable assemblies that can be accessed from above.
The light engine, electronics and seals can be maintained or upgraded without disturbing the cleanroom below.
In the event of major accidental damage requiring complete luminaire replacement, installations using approved installation kits allow the luminaire to be removed and reinstalled from above through the original ceiling penetration, without disturbing the room-side installation or requiring access equipment below.
Emergency Lighting Options
SOFFITO SFO can incorporate emergency-lighting solutions, reducing the need for additional ceiling penetrations while making use of high-output luminaires already positioned throughout the production environment.
Higher emergency illumination levels can improve visibility around complex machinery, equipment and evacuation routes, supporting safer emergency evacuation.
Available AS/NZS 2293.3 compliant emergency options include:
90-Minute D250 Emergency Pack
A self-testing D250, 90-minute, 30 W emergency pack can be mounted above the ceiling and provides independent self-testing functionality.
Auxiliary 30 W UPS Supply
An auxiliary inline 30 W driver can be supplied from the building UPS system, helping reduce the load on the UPS while providing emergency operation.
DALI-Controlled UPS System
DALI-controlled UPS solutions can assign selected luminaires to an emergency scene and support higher emergency outputs and remote monitoring, subject to final system specification.
UPS and DALI emergency systems require appropriately protected power and control circuits.
Key Benefits
- High-output LED performance – Up to 27,360 lm with efficacy up to 152 lm/W.
- Hygienic design – Lightweight, rust-free food-grade PBT/PCT body with a seamless, easy-clean moulded frame.
- IP66 protection – Suitable for food processing, cleanrooms, wash-down and wet-room environments.
- Long service life – L80 (B0) >102,000 hours, supporting more than 10 years of 24/7 operation.
- Wide temperature range – Suitable for applications from –40°C to +50°C, depending on installation configuration.
- Advanced protection – Moisture, chemical, over-temperature, over/under-voltage, short-circuit and surge protection.
- Flexible controls – Supports DALI, DT8 tunable white, circadian lighting, dual-circuit switching and custom-spectrum options.
- Easy maintenance and upgrades – Replace the LED, driver and top plate using the cartridge system without replacing the complete luminaire.
- Flexible installation – Recessed and surface-mount options, including 304/316 stainless-steel installation systems.
- Emergency lighting options – Available with D250 90-minute emergency packs, UPS and DALI-controlled solutions.
Applications
- Pharmaceutical manufacturing
- Cleanrooms
- Food processing and production
- Laboratories
- Cleanroom inspection areas
- Animal housing
- Wash-down areas
- Wet rooms
- Freezers and cold rooms
- Temperature-controlled environments
- Light-sensitive pharmaceutical processes
- Specialist cleanroom applications
- Hazardous-location applications with suitable Class I, Division 2 driver options.
The Long-Term Cleanroom Lighting Solution
The Isollux SOFFITO SFO combines high-output LED performance, hygienic construction, environmental protection, advanced controls and long-term serviceability in a single purpose-designed luminaire.
Its combination of IP66 protection, high mechanical and chemical resistance, extended LED life, flexible installation systems, emergency-lighting options and upgradeable cartridge architecture makes SOFFITO SFO a durable and sustainable solution for critical lighting environments where reliability, hygiene and maintainability are essential.