Professional Solutions
For installers
Fewer manual terminations. Cleaner connections between panels. Faster project workflow.
4Blue Lineva U19 is designed as a professional panel installation system—not simply a loose LED panel. Each Lineva U19 Standard ON/OFF panel includes a 4Blue 3-pole T-connector and a 2 m interconnection cable, so the connection accessories do not have to be ordered separately.
Connection system
The daisy-chain run in three numbers
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.
Scope. Connection-system details shown on this page apply to the Lineva U19 Standard ON/OFF version. DALI connection requirements are specified separately.
System
Built for repeat installation
- 3-pole T-connector and 2 m cable included with each Standard ON/OFF panel
- Reduced repeated manual termination work
- Standard and DALI panel options
- A consistent repeat-connection method for Standard ON/OFF projects
4Blue 3-pole T-connector
2 m interconnection cable
Benefit
Where installers gain
01
Cleaner repeat connections
The 4Blue connection components included with Standard ON/OFF panels support a consistent repeat workflow after the initial feed point.
02
Less accessory coordination
One 3-pole T-connector and one 2 m interconnection cable are supplied with each Lineva U19 Standard ON/OFF panel.
03
Practical demonstration
Installers can review the connection method before using the system on a commercial project.
Demonstration
The 30-Second Challenge
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.
See the real 4Blue T-connector and 2 m interconnection cable in operation and evaluate the workflow for yourself.
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.
Support
Support for your project
- Lineva U19 product and connection-system demonstrations
- Current datasheets and installation information
- Standard and DALI product guidance
- Project-specific technical discussion before ordering
Next step
Review the system before your next project
Request a practical demonstration of Lineva U19 and the 4Blue connection system.