Paulmann 96995 URail connector end cap 123x57mm 5.3W black rail system

Amazon

CLOSE-OFF – The end caps close-off the URail system safely and neatly. EASY INSTALLATION – The end caps finish off the URail installation. Simply slide them onto the rail ends and fix them in place with a small screw. SET – Two end caps are included in the delivery URAIL RAIL SYSTEM - individually illuminate different areas of a room individually using a single 230V power outlet EXPANDABLE – More URail components can be easily added

Lights.co

End cap LED with warm white light color - luminous end for black rails This end cap forms the luminous end of a black URail rail. It is equipped with dimmable, warm white LEDs and is simply plugged on.