Where to put a Panthella floor lamp beside a sofa or armchair
Stand the 129 cm Panthella 500 with its stem 30 cm from the wall and within 25 cm of the sofa arm. It needs a gap of at least 50 cm, ideally 60 cm.
Short answer: Stand the Panthella 500 Floor Lamp at the end of the sofa or beside the armchair, with the stem about 30 cm from the wall and no more than 25 cm out from the side of the arm, so the 50 cm shade reaches over the seat. You need a free gap of at least 50 cm for the shade, and 60 cm or more to make it look settled rather than squeezed in.
Everything below is worked out from three numbers in the specification: 500 mm across, 1290 mm tall, 13.0 kg.
Start with the shade, not the base
The trumpet base is narrower than the shade, so the base never decides whether the lamp fits. The shade does. At 500 mm across, it reaches 25 cm in every direction from the centre of the stem, at the height of curtains, frames and bookcases.
That gives a simple rule: the centre of the stem must sit at least 25 cm from any wall, curtain or tall piece of furniture. We would add 5 cm, so 30 cm, because a shade that brushes a curtain every time someone sits down looks wrong and collects marks.
Below the rim it is a different story. A sofa arm of 60 to 70 cm sits well under a shade at the top of a 129 cm stem, so the shade can hang over the arm. That overlap is what you want: it brings the light to the person sitting there instead of to the empty floor beside them.
The placement table
Measure the free space beside the sofa or chair at shade height, from the outside of the arm to the nearest wall, curtain or furniture. Then read across.
| Free gap beside the arm | Where the stem goes | What you get |
|---|---|---|
| Under 50 cm | Nowhere sensible; the shade cannot fit | Move the sofa or pick another spot (see below) |
| 50–60 cm | Centred in the gap, tight to the arm | Works, but 5 cm or less of air around the rim; looks squeezed |
| 60–80 cm | 30 cm from the wall, within 25 cm of the arm | Our preferred setup: shade reaches the seat, air on both sides |
| Over 80 cm | Still within 25 cm of the arm, not centred in the gap | Keeps the light on the seat; the extra floor stays empty |
| Corner behind an armchair | 30 cm from both walls, about 42 cm diagonally from the corner | Lamp and chair read as one group; shade clears both walls |
The 42 cm in the last row is just the diagonal of a 30 cm square, so you can mark it with a tape measure from the corner before the lamp arrives. The 25 cm limit matters most in larger gaps: put the stem further out and the light falls on the floor beside you rather than on your lap.
Height: what 129 cm does in a living room
For most standing adults, 129 cm is below eye level, so when you walk past you look down onto the top of the opal dome and the bulb stays hidden under it. Seated, you see the dome from the side, which is how the lamp is meant to be read: a glowing shape at the end of the sofa rather than a bright point.
Being taller than the sofa back and the side table, it marks the edge of the seating group, which is why the end of a sofa suits it better than the middle of a bare wall.
The shade throws its light down onto the white trumpet base, which then reflects some of it back out. In practice that means a soft pool on the floor, the arm and the lap, with very little thrown up the wall. If you want the ceiling lit too, that has to come from another lamp.
The cord, the switch and the 13 kg
This lamp switches with a floor switch on the cord, not on the stem. Decide where that switch should land before you fix the position: usually on the side you walk in from, or by the front foot of the chair, so you can press it as you sit down. A switch that ends up under the sofa frame is one you will stop using.
At 13.0 kg the lamp is heavy enough not to wobble when someone brushes past the shade, and still light enough for one person to move. Try it in two spots for an evening each before settling.
Two practical points. On a thick, deep-pile rug the base can sit slightly off level, which shows on a tall stem; a flat rug or bare floor is better. And the lamp takes a single E27 bulb, which is not included, so choose one before it arrives and check the label inside the socket for the maximum rating.
Where we would put it
A three-seat sofa with 60 cm or more beside one arm: this is what the Panthella 500 Floor Lamp is for. Stem 30 cm from the wall, within 25 cm of the arm, switch by the front foot of the sofa.
An armchair in a corner: mark the 42 cm diagonal and stand the lamp behind the chair's shoulder. The chair gets its own light and the corner stops being dead space.
A gap under 50 cm, or a side table already in the spot: do not force the floor lamp. Put the Panthella 250 Portable Lamp on the table instead; at 250 mm across and 335 mm high it gives the same downward light at seated height and needs no socket nearby.
A larger room with a long sofa: use the floor lamp at one end and a Panthella 160 Portable Lamp (241 mm high) on a shelf or the far side table. Two heights of the same dome read as one plan.
If you want the story of why the base works as a reflector, our piece on Panton's light sculpture in one curve covers it. For the other floor and table lamps from the same maker, browse the Louis Poulsen collection.
