Quick answer: for a stairwell or double-height living room you need a pendant lamp with sufficient adjustable drop (so that the lamp is suspended at 2–3 m from the floor at the lowest point of the run), with a diameter proportional to the opening (approx. 1/3 of the clear width) and high luminosity (look for the total flux in lumens, not just the watts). In 5–8 m spaces you need models with drops of up to 3–5 m and TRIAC / 0–10 V / DALI dimming to adjust the scene without dark areas.
1. Measure first: the 3 data points that determine the purchase
| Data point | What to measure | Why it matters |
|---|---|---|
| Clear height of the opening | From the ground floor to the upper ceiling (m) | Defines the drop you need. Rule of thumb: the lamp should hang down to 2–3 m from the floor at its lowest point. |
| Width / diameter of the opening | The horizontal free space (cm) | The diameter of the lamp must be proportional: not so small that it gets lost, nor so large that it hits the railing. Guideline: ~1/3 of the free width. |
| Use of the light | Decorative, functional, or both? | Determines the lumens and color temperature (2700–3000 K warm for cozy; 4000 K neutral for functional). |
GASCÓN Tip: take a photo of the space with a tape measure visible and send it to us — we will tell you which models fit based on drop and diameter.
2. The drop (the most forgotten detail)
The drop is the total length from the ceiling anchor to the bottom of the lamp. It is the data point that is most ignored and the one that prevents the most returns:
- 3–4 m ceilings (moderate double height, landings): drop of 150–250 cm.
- 4–6 m ceilings (double-height living rooms, lobbies): drop of 250–400 cm.
- 6–8 m ceilings or more (large stairwells, hotels): drop of 400–500 cm, usually with adjustable cable/tensioner for on-site adjustment.
Prioritize models with adjustable drop (min–max range): they allow you to adapt the final height at the time of installation, which is almost essential in irregular spaces. You can filter them in our collection of height-adjustable pendant lamps.
3. How much light you need (lumens, not watts)
With LED, watts no longer indicate the light: look at the lumens (lm). As a guide for a double-height space:
| Type of space | Approximate goal |
|---|---|
| Decorative stairwell | 2,000–4,000 total lm |
| Double-height living room (main light) | 4,000–8,000 lm |
| Lobbies / contract / high ceiling | 8,000–15,000 lm |
If the model supports dimming (TRIAC, 0–10 V, or DALI), you can lower the intensity to create ambiance and turn it up when you need task lighting. In high ceilings, dimming is key to avoiding glare and dark areas. Also note that height dissipates light (about 15–20% is lost per meter of ceiling), so at high heights, it is advisable to aim high regarding total flux.
4. Formats that work in height
- Cascade / vertical linear: several staggered lights that follow the path of the staircase. The quintessential format for deep openings.
- Large-format chandelier (multiple lights): strong decorative presence for lobbies and double-height living rooms.
- Suspended rings / spheres: contemporary design, widely used in modern double heights — such as the 8-ring Schuller Ring.
5. Installation and safety
- In high openings, installation usually requires scaffolding or a platform and, often, a system that allows lowering the lamp for maintenance (cleaning/source replacement).
- If you do not have experience with electrical installations at height, hire a professional electrician: it is an intervention that is best done right the first time.
Which lamp fits your space (by actual drop)
These pieces have the drop verified in the manufacturer's technical drawing, not estimated. Find your height and verify that the lamp is 2–3 m from the floor at its lowest point.
Openings of 5 meters or more
Multi-story stairwells, lobbies, and contract projects.
- LedsC4 Voiles Big Recessed LED pendant lamp steel Japanese paper 55W — drops up to 5.5 m
- LedsC4 Voiles Big Surface LED pendant lamp steel Japanese paper 55W — drops up to 5.5 m
- LedsC4 Geometric Triangular Mini Double large pendant lamp — drops up to 5 m
- LedsC4 Geometric Triangular Recessed large pendant lamp — drops up to 5 m
See all options for this height
Openings of 4 to 5 meters
Double-height living rooms and two-story stairwells.
- LedsC4 Circular Inward Double Rings large pendant lamp — drops up to 3 m
- LedsC4 Circular Downward 2 Rings large pendant lamp — drops up to 3 m
- LedsC4 Circular Downward Recessed large LED pendant lamp Ø120cm — drops up to 3 m
- LedsC4 Circular Downward Surface large LED pendant lamp Ø120cm — drops up to 3 m
See all options for this height
Openings of 3 to 4 meters
Moderate double height and spacious landings.
- LedsC4 Circ large LED pendant lamp shaded white 3000K Ø60+Ø80cm — drops up to 2.5 m
- LedsC4 Circ Round large LED pendant lamp shaded white 3000K — drops up to 2.5 m
- LedsC4 Ilargi Double Lamp LED pendant lamp dark wood 2700K — drops up to 2.5 m
- LedsC4 Circ Round LED pendant lamp shaded white 3000K Ø60cm — drops up to 2.5 m
See all options for this height
Does your space have a different measurement? Send us a photo with the clear height and width, and we will tell you which pieces fit based on drop, diameter, and light.
Frequently asked questions
At what height from the floor should the lamp be in a stairwell?
As a reference, 2–3 m from the floor at the lowest point of the run, so that it is visible from several floors without obstructing passage.
What drop do I need for a 5-meter ceiling?
Usually between 300 and 500 cm, preferably with an adjustable cable for on-site adjustment. At GASCÓN you have a specific collection of lamps for ceilings of 5 meters or more.
What lamp diameter do I choose for the opening?
Proportion it to the opening: around 1/3 of the free width. In a narrow opening, a vertical or cascade format is better than a very wide one.
How many lumens do I need for a double-height living room?
Between 4,000 and 8,000 lm for the main light; more if the ceiling exceeds 6 m or for contract use. With dimming you can adjust the scene.
Can I adjust the height of the lamp after installing it?
Yes, if you choose a model with an adjustable drop (minimum–maximum range). It is highly recommended in high and irregular spaces.
Discover the GASCÓN selection
- Lamps for stairwells and high ceilings — the specific catalog, filterable by drop.
- Lamps for ceilings of 5 meters or more — great drop (up to 5 m).
- Large ceiling lamps — large format and presence.
- XL selection for high ceilings and stairs — the curated large-format selection, displayed and lit in the Altea showroom.
- Large golden lamps — brass and matte gold for living rooms and double heights; they reflect light and add warmth.
- Height-adjustable — adjust the drop to your opening.
Star models for high ceilings (verified with stock): Ghost Chandelier Big (5 m), Schuller Norma (adjustable with remote control) and 8-ring Schuller Ring. Premium brands (Schuller, LEDS-C4, Mantra, EGLO) with expert advice: send us the photo and measurements of the opening and we will propose the model based on drop, diameter, and lumens.
