SOFFITO | SFO
The Ultimate Cleanroom Luminaire
A high-output LED high bay luminaire for food processing, pharmaceutical manufacturing and cleanroom environments. Its large luminous surface delivers low-glare, uniform illumination from a lightweight, rust-free hygienic body, with long service life and flexible installation options for ambient conditions from –40°C to +50°C.*
Power Options
Four standard Power Options available from 4,000K–7,000K (CRI 85/95)
100W | 15,200lm
120W | 18,240lm
150W | 22,800lm
180W | 27,360lm
Cartridge Solution
At end of service life, replace the LED, driver and top plate in minutes without breaking the hygiene seal. Upgrades the original SFO to the latest performance while retaining the installed luminaire and accessories.
View the Soffito SFK Long-Service Upgrade Kit
L85 > 10 Years 24/7
Isollux XE dual-die LED chipsets are conservatively operated to optimise service life and deliver L80 (B0) >102,000 h across the published ambient range specified for each model.
Explore how we engineer and validate LED performance
Ingress Protection
Soffito SFO provides IP66 protection from the room side for food processing, cleanroom manufacturing, wash-down and wet-room applications. Above the ceiling, its free-breathing construction allows moisture to escape rather than becoming trapped within the luminaire.
Durability
Soffito uses a food-grade PBT/PCT engineering blend to create a lightweight, rust-free monocoque body with high mechanical strength, chemical resistance and dimensional stability across its specified cleanroom, laboratory and food-production environments.
Lighting Controls
Soffito supports dual-circuit switching for laboratories, animal housing and cleanroom inspection areas, through to DALI scheduling, DT8 tunable white, circadian lighting and custom spectrum options.
Advanced Spectral Control
Custom LED configurations provide precise spectral and wavelength control for photosensitive pharmaceutical, cleanroom and laboratory applications. Isollux Ambrite™ amber LEDs can be combined with standard white light within a single luminaire, providing controlled illumination for light-sensitive APIs, products and processes.
Download: Ambrite™ Spectral Lighting Brochure
Emergency Lighting
Emergency options include a D250 90-minute 30 W emergency pack, an auxiliary inline 30 W driver to reduce UPS load, or DALI control to assign selected luminaires to an emergency scene. Full details at the bottom of this page.
Multi-Layer Moisture Protection
Each LED board is finished with a protective coating that safeguards both the PCB and LED against chemical and moisture exposure. If an accidental flooding occurs, the top can be removed flushed in distilled water and left to dry before re-energising the luminaire.
Multi-Layer Electrical Protection
Drivers are factory de-rated to ≤80% of maximum output to reduce component stress and extend service life. Driver options include Class I, Division 2 rated models for hazardous locations, with multiple layers of electrical protection including:
- IP66-IP67 Potted Enclosures and connections
- Flicker Free EN 61000-3-3
- Under Voltage Protection
- Over Voltage Protection
- Short Circuit Protection with auto recovery
- Over Temperature Protection
- Wide Input Range 90~305VAC
- Surge Protection - DM 6kV, CM 10kV
Contact us for the Full Data Pack
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Approved Installation Kits Protect Your Investment
Installation Kits
With over fifteen years of experience and multiple options for task-critical installations, our installation kits are engineered to simplify installation, ensure correct alignment and sealing, maintain service access and protect the long-term integrity of the system.
Approved installation supports the full 10-year warranty; installation without an approved kit may limit warranty coverage.
Download:Installation Kit PDF
Recessed Mount
Where access from above is available, recessed mounting provides secure installation with stainless-steel fire flashing and open-frame or walk-safe covers. All components, including the complete luminaire, can be removed and maintained from above, simplifying long-term maintenance above complex machinery.
See Video: Recessed Installation-open-top
See Video: Covered Recessed Installation
Surface Mount
Where penetrations are impractical, such as concrete ceilings or freezers, the surface-mount kit offers a simple, secure solution. Available in 304 or 316 stainless steel with powder-coated or epoxy white finishes, it supports internal or remote driver mounting.*
*150 W maximum with internal driver; subject to ambient.
See Video: Surface Mount Installation
Extreme low temperature operation
SLP supports low-temperature applications within its published ambient range. For freezer and cold-room installations, surface mounting maintains the PIR panel vapour barrier and avoids creating a thermal pathway through the insulated ceiling.
Optional Dual Lens
Minimises thermal exchange through the luminaire, helping prevent condensation near evaporators and reducing HVAC load in temperature-controlled environments.
Seamless Moulded Frame
Developed for hygiene-critical environments, Soffito’s low-profile, easy-clean moulded frame is rust-free, resistant to sanitisers and eliminates seams and joints where contamination can accumulate.
Seismic Safety Mounts
Each corner mount uses a 316 stainless-steel brace to connect the fixing bolt back to the main frame through a rubber damper and secondary seismic tether, providing an additional load path during extreme movement.
IP66 Valley Seal
Soffito forms an IP66 dry seal on flat, non-porous surfaces without silicone at just 3 Nm fixing torque. The convex profile eliminates dirt-catching ledges, while the valley provides a channel for wet-cure silicone to bridge construction gaps or material joins. Contractor torque-head kits ensure consistent installation.
Cleanroom Integration
The lightweight body simplifies installation into cleanroom ceiling systems, with recessed and surface-mount options designed to maintain room integrity and provide long-term service access. Custom configurations can incorporate UV systems for specialist applications.
Maintenance Upgrades
Simple and Sustainable
Soffito’s cartridge system allows periodic light-engine and electronics upgrades without replacing the complete luminaire, reducing waste while maintaining performance over its extended service life.
Explore the Long-Service Upgrade Kit
Fully Serviceable Assembly
Soffito is designed around serviceable assemblies that can be accessed from above, allowing the light engine, electronics and seals to be maintained or upgraded without disturbing the cleanroom below.
Complete Luminaire Replacement
If major accidental damage requires complete replacement, the luminaire can be removed and reinstalled from above through its original ceiling penetration, without disturbing the room-side installation or requiring access equipment below.*
*Applies to Soffito installations using approved installation kits.
Parts and Spares
Fully Serviceable Assembly
Soffito has been in continuous production for more than a decade, with its tooling owned and maintained by Isollux. Replacement seals, lenses, upgrade kits and individual components remain available, supporting maintenance and repair throughout the extended life of the luminaire.
