Philips InteGrade engine UB Vi 855 mm 940 PW G4 — Premium White LED engine for canopy lighting

InteGrade engine UB Vi 855 mm 940 PW G4 is a fourth-generation Premium White linear LED engine with Uniform Beam optics designed for canopy installation in refrigerated display cases. Its 14.1 W power rating delivers 1667 lm at a 4000 K (neutral white) color temperature, ensuring outstanding brightness and uniform illumination across the entire cabinet height. The Premium White series stands out with superior CRI 94 and excellent 3 SDCM color consistency — twice as good as standard G4 lines — providing a uniform, premium display appearance that strengthens a high-end retail image.

Key features and benefits

• Premium White — exceptional light quality — specially formulated Premium White LEDs enhance Ra values across the spectrum, delivering dazzling pure whites and vivid, saturated colors. Dairy, fish, ready meals, and products in white packaging look much more attractive than under standard lighting.
• 3 SDCM color consistency — a standout feature of the PW series: color differences between adjacent engines are practically indistinguishable to the naked eye. The display appears uniform and professional even in large multi-cabinet installations.
• CRI 94 (typical) — the highest color rendering index in the G4 family; natural, faithful product colors boost customer trust in product quality and reduce returns caused by disappointment with appearance after purchase.
• 940 color temperature (4000 K — neutral white) — crisp, neutral white light perfectly highlights fish, seafood, dairy, ready meals, and light-packaged products; it emphasizes freshness and hygiene of the display.
• Consistent store appearance — Premium White InteGrade G4 can be paired with Philips Fortimo SLM Premium White spotlights; the same color temperature and light quality throughout the store reinforce brand image and deliver an unmatched shopping experience.
• Uniform Beam optics (UB) — ideal for canopy — advanced optical design evenly illuminates the entire height of the cabinet interior from top to bottom shelf; it eliminates dark zones in the center of glass doors, a common issue with traditional lighting.
• Vi (vision) version — maximum lumen output — 1667 lm at 14.1 W provides outstanding product visibility even through fogged or layered glass fridge doors; the light literally makes the doors "disappear."
• Efficiency up to 137 lm/W (G4 system) — the latest generation G4 energy efficiency lowers operating costs and reduces the installation's carbon footprint while delivering top-quality light.
• Continuous line of light without hot spots — revolutionary G4 optics create an uninterrupted light stream without dazzling points, glare, or reflections on packaging; shopping comfort improves and the display maintains a clean, aesthetic look.
• Instant full brightness — no warm-up time, full intensity from the first second; reliable operation through multiple daily cycles without light quality degradation.
• 50,000 h lifetime — minimal lumen depreciation and practically zero color shift over time; the light remains as bright and consistent throughout its service life as on the installation day.
• Dimmable capability — flexible brightness adjustment for time of day, store zone, or energy-saving schedules; fully compatible with Philips 24 V DC Constant Voltage drivers.
• Full compatibility with the InteGrade G4 ecosystem — mounting profiles, clips (standard, magnetic, canopy), power cables, and drivers from the G4 portfolio fit without modification; easy expansion and retrofit upgrades.

Technical specifications

Dimensions

FAQ — Frequently asked questions

What is the difference between Premium White (PW) and the standard G4 series?

The Premium White (PW) series offers a higher CRI (94 vs. 90–92), better color consistency (3 SDCM instead of 5 SDCM), and a spectrum optimized for excellent reproduction of whites and saturated colors. PW also allows a uniform look throughout the store thanks to compatibility with Philips Fortimo SLM Premium White spotlights. The standard series is chosen when energy savings are the priority; PW is chosen when display quality and brand image are critical.

What does 3 SDCM mean and why is it important?

SDCM (Standard Deviation of Color Matching) is a measure of color uniformity between individual LED engines. 3 SDCM means color differences are practically imperceptible to the naked eye even when directly comparing adjacent fixtures. The standard G4 series has 5 SDCM — small differences may be visible in large displays. In premium stores and refrigerated aisles several meters long, 3 SDCM consistency is a noticeable quality advantage.

What is Uniform Beam (UB) optics and what applications is it used for?

Uniform Beam optics direct light evenly downwards and sideways, covering the full height of the refrigerated cabinet interior from top to bottom shelf. It is dedicated to top-of-cabinet installation. Unlike Narrow Beam (NB — vertical door installation), UB eliminates dark zones in the center of glass doors, which are a common problem with traditional lighting.

What is the difference between the Vi (vision) and Va (value) versions in the same PW series?

For UB 855 mm 940 PW G4: the Vi (vision) version delivers 1667 lm at 14.1 W, while the Va (value) version delivers 1045 lm at 7.78 W. Vi is chosen for deeper cabinets, higher luxury requirements, or when products must be clearly visible through glass doors. Va works well in smaller cabinets and installations where energy savings are the priority.

What type of LED driver is required?

The engine requires a constant voltage 24 V DC power supply. Philips offers dedicated Constant Voltage drivers from 60 W to 240 W (plug-and-play and standard versions).

Is the engine suitable for freezers?

Yes. The product is certified according to IEC/EN 60335-2-89 (commercial refrigeration furniture) and IEC/EN 60335-2-24 (refrigerators), as well as NSF and UL 2108. The engine is designed and certified for use inside refrigerated and freezer furniture at temperatures down to -30 °C.