Philips InteGrade engine UB Vi 855 mm WWR G4 — Food LED engine for the upper part of refrigerated display case furniture

InteGrade engine UB Vi 855 mm WWR G4 is a fourth-generation linear LED engine with Philips Food LED technology (WWR — warm white red), equipped with Uniform Beam optics designed for installation in the upper part of refrigerated display case furniture (category "For canopy lighting"). At 9.81 W and 24 V DC, it delivers 1046 lm of uniform light that enhances the natural colors of food products. Meat, cold cuts, cheeses and bread look appetizing and fresh throughout the day, encouraging customers to purchase.

Key features and benefits

• Philips Food LED technology (WWR — warm white red) — specially formulated LED recipe for food display under refrigeration conditions: enhanced saturation of reds and warm colors while maintaining natural white; meat, cold cuts, cheeses and bread look appetizing and fresh, directly translating into customer purchase decisions.
• Uniform Beam (UB) optics — even lighting from top to bottom — according to Philips classification ("For canopy lighting"), the advanced optical system evenly illuminates the full height of the interior from the top section to the bottom shelf; it eliminates dark zones in the center of glass door cabinets.
• Vi (vision) version — high luminous flux — 1046 lm from 9.81 W provides good product visibility through glass refrigerator doors at a compact 855 mm length.
• CRI ≥ 90 — natural, faithful color reproduction of food products; customers see the product as it really is, building trust in the quality of the display.
• 5 SDCM color consistency — minimal color differences between neighboring engines; uniform lighting appearance across the full length of the refrigerated shelf.
• Up to 137 lm/W efficiency (G4 system) — state-of-the-art G4 generation efficiency reduces operating costs while maintaining high light quality.
• Continuous light line without hot spots or glare — advanced G4 optics eliminate dazzling bright points and reflections on packaging; the display looks uniform along the full length of the cabinet.
• Instant full brightness — no warm-up time, full light output from the first second of switching on; reliable operation during multiple daily on/off cycles.
• 50,000 h lifetime — more than 8 years at 16 hours per day without replacement; minimal lumen depreciation and color shift over time.
• Operation in a wide temperature range — certified for operation from -30°C to +30°C; reliable in both refrigerators and deep freezers.
• Dimmable — flexible brightness adjustment for time of day and store zone; energy savings outside peak hours.
• Full compatibility with the InteGrade G4 ecosystem — mounting profiles, clips, power cables and drivers from the G4 portfolio fit without modification; easy expansion and modernization of existing installations.

Technical data

Dimensions

FAQ — frequently asked questions

How does this engine (WWR) differ from the 940 PW G4 version of the same length?

For the 855 mm length in the upper part of the cabinet, two Vision series variants are available: WWR G4 (this product, 10NC: 9290 021 531) and 940 PW G4 (10NC: 9290 021 606). The WWR version offers 9.81 W power and 1046 lm flux with Food LED technology that enhances warm colors of food products (CRI 90, 5 SDCM). The 940 PW version is a Premium White series with 14.1 W power, 1434 lm flux, CRI 94 and 3 SDCM consistency — higher quality color reproduction and the ability to create a uniform appearance with store lighting. The choice depends on the cabinet assortment and priorities: Food LED (WWR) for meat and cold cuts, Premium White (PW) for a full range of products and highest-quality display.

What does Philips Food LED technology (WWR) mean?

WWR is an abbreviation for warm white red — an LED formula developed by Philips specifically for food display under refrigeration conditions. It enhances the saturation of reds and warm colors (meat, cold cuts, cheeses, bread) while maintaining natural white. WWR products are dedicated exclusively to refrigerated and freezer cabinets — not for general room lighting.

What is the difference between the Vi (vision) and Va (value) versions for UB 855mm WWR G4?

The Vi (vision) version delivers 1046 lm at 9.81 W — designed for installations requiring higher brightness. The Va (value) version of the same engine offers lower flux at significantly lower power — chosen when energy savings are prioritized in smaller or shallower cabinets.

Which LED driver is required?

The engine requires a 24 V DC Class 2 (SELV) power supply. The product label states: "Use Only with Class 2 Power unit". Philips has certified the system only in combination with Philips Constant Voltage drivers — only such pairing ensures 50,000 h lifetime.

Is the engine suitable for freezers?

Yes. The product is certified for operation in ambient temperatures from -30°C to +30°C, as confirmed by the product label. NSF and UL 2108 certifications permit use inside refrigerated and freezer cabinets according to IEC/EN 60335-2-24 and IEC/EN 60335-2-89 standards.

What is an LED engine and how does it differ from a finished fixture?

Engine is an LED module without an external housing, designed for direct OEM integration into refrigerated display case furniture construction. Fixture (F) is a complete luminaire with housing, ready to mount on standard InteGrade profiles. The UB Vi engine is chosen by manufacturers who integrate the LED module directly into the upper part of the cabinet.

This product is intended for OEM applications — it requires installation into refrigerated display case furniture construction and connection to a compatible Philips 24 V DC Class 2 driver. The engine is not a standalone ready-to-use luminaire.