
Less glare. Less wiring. More value.
4Blue Lineva U19 combines high-efficiency backlit performance, controlled visual comfort and the 4Blue connection system included with the Standard ON/OFF version—designed for repeatable commercial projects and a cleaner installation workflow.

Overview
Professional performance. Practical installation.
Comfort
Controlled visual comfort
Designed for UGR <19 applications in offices and commercial interiors; final UGR depends on room geometry, reflectance and layout.
Efficiency
High-efficiency performance
Up to 180 lm/W. The current Lineva U19 release is specified at 22 W nominal power.
Installation
Cleaner repeat installation
4Blue 3-pole T-connector and 2 m interconnection cable included with the Standard ON/OFF version.
Qualification. UGR <19 relates to the applicable photometric data and to room dimensions, layout and mounting conditions. It is not guaranteed in every installation. Efficacy is stated as up to 180 lm/W. No complete-luminaire luminous flux is published until it is confirmed by measurement.
Range
Two formats. Standard or DALI.
Lineva U19 is available in 595 × 595 mm and 295 × 1195 mm formats. The Standard ON/OFF version uses a Philips Xitanium UHE driver. The DALI version uses a separate Philips Xitanium DALI driver. Lineva U19 is specified at 22 W nominal power.
Format 600×600
595 × 595 × 34 mm
Standard and DALI variants.
Format 300×1200
295 × 1195 × 34 mm
Standard and DALI variants.

Specification
Key specifications.
- Glare
- UGR <19*
- Colour rendering
- CRI >80
- Efficacy
- Up to 180 lm/W
- Nominal power
- 22 W
- Dimensions
- 595 × 595 × 34 mm / 295 × 1195 × 34 mm
- CCT
- 3-CCT: 3000 / 4000 / 6500 K
- Protection
- IP40
- Electrical
- PF >0.95 / Class II
- Optics / photobiological
- PMMA optics / RG0
- Standard
- Philips Xitanium UHE driver — Standard ON/OFF
- DALI
- Philips Xitanium DALI driver — DALI
- Lifetime
- 58,000 h (L90B10)
- Warranty
- 5-year warranty**
* UGR is application-dependent; final results depend on room geometry, reflectance and layout.
** Subject to the final published warranty terms.
Photometric files (LDT, IES, DIALux) and UGR tables will be published once complete-luminaire measurement is confirmed. Request project data.
Energy
What 22 W per panel means across 100 panels
Basis22 W Lineva U19 vs 38 W legacy panel
Basis100 panels · 12 h/day · 365 days · 16,644 kWh → 9,636 kWh
Basis100 panels · 12 h/day · 365 days · illustrative assumed electricity rate €0.19/kWh (Czechia). At an illustrative assumed rate of €0.20/kWh (Slovakia): €1,402/year.
| Measure | Legacy panel | Lineva U19 |
|---|---|---|
| Connected load per panel | 38 W | 22 W |
| Connected load (100 panels) | 3.8 kW | 2.2 kW |
| Daily energy (12 h/day) | 45.6 kWh | 26.4 kWh |
| Annual energy (365 days/year) | 16,644 kWh | 9,636 kWh |
| Annual cost — Czechia (illustrative assumed rate €0.19/kWh) | €3,162/year | €1,831/year |
| Annual cost — Slovakia (illustrative assumed rate €0.20/kWh) | €3,329/year | €1,927/year |
| Reduction vs 38 W legacy panel | Reference | 42.1% lower connected load |
| Control option | Not compared | Standard ON/OFF or DALI |
Scroll the table sideways on small screens.
Illustrative connected-load example only. Actual savings depend on operating hours, tariffs, controls, project design and the final application. The electricity rates used are illustrative assumed model inputs, not current national tariffs and not a price offer. This is not proof of equivalent delivered illumination.
Connection
The 4Blue connection system.
The 3-pole T-connector and 2 m interconnection cable included with the Lineva U19 Standard ON/OFF version support a cleaner, repeatable installation workflow.
Supplied
Included with Standard ON/OFF.
Each Lineva U19 Standard ON/OFF panel includes the 4Blue 3-pole T-connector and a 2 m interconnection cable.
Repeatability
Designed for repeat projects.
The Standard ON/OFF connection concept supports a cleaner daisy-chain workflow and reduces repeated point-to-point wiring between panels.

4Blue 3-pole T-connector

2 m interconnection cable
Scope. Connection-system details shown on this page apply to the Lineva U19 Standard ON/OFF version. DALI connection requirements are specified separately.
Safety. Connect or disconnect only when the circuit is isolated. Final circuit design, cable sizing and protection must be verified by a qualified electrician in accordance with local regulations.
Control
Philips drivers. Standard or DALI control.
The Standard ON/OFF version uses a Philips Xitanium UHE driver. The DALI version uses a separate Philips Xitanium DALI driver.
Power
22 W nominal power.
22 W is the current nominal complete-panel specification; exact AC input remains subject to complete-luminaire measurement.
Control
Standard or DALI.
Choose conventional ON/OFF control or DALI lighting control.
Note. Driver approval marks apply to the Philips driver, not automatically to the complete Lineva U19 luminaire.
Next step
Ready to review Lineva U19?
Request a demonstration or contact 4Blue-LED to discuss your next commercial lighting project.