One ceiling outlet, two light points – that's one of the most common questions in the configurator: “two lamps one connection”, usually for bedside tables, a narrow kitchen run or two pendants next to a sofa. Electrically it's straightforward, because it's a simple parallel circuit. The effort lies in the neat distribution on the ceiling, not in the connection itself.
Parallel wiring: what happens at the terminal
Three wires come out of the ceiling (L, N, PE). Both lights get the same supply, so their wires of the same colour go into a shared terminal together with the ceiling wire: L from the ceiling plus L from light 1 plus L from light 2 into one terminal point, and the same for N and PE. A terminal block with three holes per row is enough for this; a push-in terminal with several inputs is quicker and more secure with fine-stranded fabric cables. Both lights then switch together from the same wall switch – a second, independent switch would need a second switched wire from the ceiling, which a single outlet usually doesn't have.
Load: when it gets tight
A normal lighting circuit is protected at 10 or 16 amps, which at 230 volts is well over 1,000 watts – for two LED bulbs at 5 to 9 watts each, that's never an issue. The load only becomes relevant when lots of lights hang from a single outlet (say, a spider with seven outlets plus two more lights) or when old 40- or 60-watt halogen bulbs not intended for LED fittings are used. With modern LED bulbs, the load at two to three lights per outlet practically always stays uncritical. More important than the wattage is the mechanical side: each strain relief has to carry the weight of its own light; the terminal itself carries no weight.
Multi-outlet ceiling rose: one component for both cables
A multi-outlet ceiling rose has two (or more) cable entries and enough space inside for the terminal with all six wires. It's fitted to the single ceiling outlet like a normal ceiling rose, but visibly distributes two cables that can run on separately – for example one straight down and one offset to a second point above the bedside table. That's the cleanest solution if both lights are to end up close together, and the "connect the ceiling outlet" step works just as with a single light: assign the wires, tighten the strain reliefs, close the cover. Details on the wiring itself are in the article on fitting a ceiling rose to the ceiling connection.
Alternative: one ceiling rose plus cable hooks
If the two lights need to end up further apart, say at either end of a bed, a single ceiling rose with two drops (like a small spider) is often simpler than a multi-outlet ceiling rose: both cables first come out of the ceiling together, but are then routed sideways along the ceiling with cable hooks before hanging down. That way there's still only one hole in the ceiling, but the look becomes more flexible, and the cable run can be shown off rather than hidden.
Different lights on one connection
The two lights on one outlet don't have to be identical. Electrically, it makes no difference whether both have the same lamp holder and cable or not – all that matters is that both are designed for the same mains voltage and the same bulb type, so usually both with E27 or both with E14 lamp holders and LED bulbs. Visually, it usually looks calmer if both lights have the same cable colour and differ only in lamp holder or ceiling rose, such as one brass and one black lamp holder on the same white cable. Completely different cable colours on a shared connection, on the other hand, quickly look random, because both lights seem to come from the same spot on the ceiling but have nothing to do with each other.
Safety note
Connecting to the ceiling wiring is a job for a qualified electrician – that applies to two lights just as much as to one, because more cores come together at the terminal and faults there are harder to find. If you don't want to open anything on the ceiling yourself, use plug-in lights with a plug and ceiling rose hook for both lights instead and simply plug them into the socket.
Plan both lights in the configurator
In the configurator you can set up a multi-outlet ceiling rose directly with two separate cable drops, each with its own colour, length and lamp holder – the preview shows both lights together in the room view before the design is ordered as a kit or pre-assembled.