Professional light. Less energy. Less wiring. Faster projects.
A professional backlit LED panel system combining controlled visual comfort, high-efficiency performance and the 4Blue connection system included with the Standard ON/OFF version—designed for repeatable commercial projects and a cleaner installation workflow.
Energy
The figures, and what each one rests on
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.
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.
Connected load compared
38 W legacy panel and 22 W Lineva U19 side by side
22 W is the current nominal complete-panel specification; exact AC input remains subject to complete-luminaire measurement. The comparison below applies that one figure to all 100 panels.
| 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 |
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100 panels · 12 h/day · 365 days/year. Illustrative assumed non-household electricity rates for the calculation, not current national tariffs: Czechia €0.19/kWh; Slovakia €0.20/kWh. Cost figures are rounded to the nearest euro. Illustrative connected-load example only. Actual savings depend on operating hours, tariffs, controls, project design and the final application. This is not proof of equivalent delivered illumination.
Connection system
Installed in a clean daisy-chain run
After the first feed point, each next Lineva U19 Standard ON/OFF panel can be connected in around 30 seconds in a clean daisy-chain run, subject to site conditions.
ScopeLineva U19 Standard ON/OFF only. After the first feed point, in a clean daisy-chain run, subject to site conditions.
BasisLineva U19 Standard ON/OFF: 3-pole mains distribution with integrated T-connector and 2 m male/female interconnection cable.
Basis20-Panel Daisy-Chain Example, 28 Aug 2026. Not a permitted maximum — circuit design remains qualified electrical work.
Circuit isolated. Connect or disconnect only when the circuit is isolated.
Connection-system details shown on this page apply to the Lineva U19 Standard ON/OFF version. DALI connection requirements are specified separately.
Final circuit design, cable sizing and protection must be verified by a qualified electrician in accordance with local regulations. The initial feed point, circuit design, protection, conductor sizing, voltage drop, earthing/classification and commissioning remain the responsibility of a qualified electrician or project designer.
Included as standard
Every Standard panel arrives with its connection components
Each Lineva U19 Standard ON/OFF panel includes the 4Blue 3-pole T-connector and a 2 m interconnection cable.
4Blue 3-pole T-connector
Continues the L, N and PE feed while one dedicated branch supplies the panel.
2 m interconnection cable
Male/female ends for panel-to-panel connection along the run.
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.
Warranty
Five-year panel and driver warranty*
*Subject to the final published warranty terms.