Floor Lamp · Indirect Lighting · Black Base · White or Wood Body · E26 / E27
Costantina is a floor lamp that works through indirect light — the beam is directed away from the eye, bouncing off walls or ceiling to fill the room with a soft, diffused glow rather than a direct cone of illumination. At 165 cm tall with a 35 cm footprint, it holds its presence in a room without demanding floor space, and the black iron base grounds the silhouette with visual weight while the upper body carries the chosen finish.
Two body finishes — White and Wood color — sit on the same matte black base, producing two distinct readings of the same form. White is clean and architectural; wood tone is warmer and more textural. The plug-in cord means no hardwiring is needed — it can be repositioned freely around any room.
Body Color — Choose at Checkout
The base is matte black on both versions. Choose your lamp body color below.
White
Black base · White bodyHigh contrast between black base and white body — clean and graphic. Suits minimalist, Scandinavian, and contemporary interiors.
Wood Color
Black base · Wood-tone bodyWarm oak-toned body against the black base — the material contrast softens into something more organic. Suits warm-neutral, Japandi, and natural interiors.
Dimensions
Specifications
| SKU | RDF-194413 |
| Dimensions | ∅ 35 × H 165 cm · ∅ 13.8″ × H 65″ |
| Base Finish | Matte black iron (fixed) |
| Body Color | White · Wood color (choose at checkout) |
| Materials | Iron lamp body |
| Light Type | Indirect — upward or sideward beam direction |
| Socket | E26 / E27 · Bulbs not included · User-replaceable |
| Power Supply | Plug-in · 150 cm / 59″ cord · No hardwiring required |
| Voltage | AC 110–240V · Universal |
| Best For | Living rooms · Bedrooms · Home offices · Reading corners · Rental spaces |
Downloads
FAQ
White or Wood color — which suits my room? +
White works best in rooms with a clean, neutral palette — white or light walls, concrete, grey linen, and minimal furniture. The contrast between the black base and white body reads as deliberate and architectural. Wood color brings warmth — the oak tone bridges the black base into something less stark and pairs naturally with natural materials: rattan, linen, light wood floors, and terracotta accents. It also sits well in Japandi and Scandi interiors where matte black and warm wood are a standard pairing.
What is indirect lighting and why does it matter? +
Indirect lighting directs the light source away from the eye — typically upward toward the ceiling or sideward toward a wall — so the room is illuminated by reflected light rather than the bulb itself. The result is softer, more diffused ambient light with significantly less glare than a downward direct fixture. Indirect floor lamps are particularly effective in living rooms and bedrooms where overhead lighting can feel harsh — they create a layered, relaxed atmosphere.
Does it need to be hardwired? +
No — Costantina is a plug-in lamp with a 150 cm (59″) cord. It plugs directly into a standard wall outlet with no electrical installation required. This makes it suitable for rental apartments, rooms without ceiling junction boxes, and any space where you want flexible lamp positioning. The cord is 150 cm long — confirm outlet placement relative to your intended lamp position before ordering.
What bulb should I use? +
A 6–10W LED at 2700–3000K warm white in an E26 (US) or E27 (international) base. For indirect lighting, choose a bulb with a frosted or opal glass diffuser rather than clear — it produces a smoother reflected glow without visible hotspots on the wall or ceiling. Avoid bulbs above 10W; indirect light is ambient by nature and higher wattage is rarely necessary. Bulbs are not included.
Downloads
Dimension drawings
Need a different document? Ask a designer — sent within 1 business day.
- Unique shape design
- Made responsibly
- High quality material
- Tested for durability
CARE
CARE
- Dust with a soft, dry cloth.
- To protect finish, we do not recommend the use of household cleaners or abrasives.
- Do not exceed specified wattage.
SHIPPING & RETURN POLICY
SHIPPING & RETURN POLICY
Enjoy free shipping on all products. With Front Door Delivery, your item ships from our Distribution Center via UPS within 2–3 business days and arrives at your home in 4–6 weeks. Eligible items may be returned within 30 days of receipt. Made-to-order items are not eligible for return.
In our workshop
Made to order, shipped insured
Every fixture is built or cut when you order it — 2–4 business days for metal, 3–5 for stone, 3–4 weeks for hand-blown glass. Then sea freight, customs handled by us, tracked to your door in about 4–6 weeks. Need it sooner? Express air, 1–3 weeks, priced at checkout.
Made your way
Nothing here is fixed
Change the finish, the colour, the stone, the size — or send us a shape.
Design services
Free whole-home lighting plans
Send floor plans or photos; a Radilum designer returns a room-by-room plan with fixture, size and mounting height — usually within 2 business days.
Fast Shipping
4-6 weeks for delivery
North American Certification
North American Certification Overview
Safety Payment
Secure payment with Multiple Credit Cards.
The workshop story
Made to order, one at a time
Every Radilum fixture is made when you order it — metal cast and finished by hand, stone cut from its own block, glass blown in small batches. That is why lead times are counted in days and weeks rather than hours, and why small variations between pieces are part of the design.
Choosing a table or floor lamp
A lamp is sized to the surface and the seat next to it, not to the room.
Shipped quick, no damage. Looks great in the family room.
The geometric shape is super cool. Matches our mid-century furniture perfectly.
This lamp has transformed our reading nook. Its unique shape and soft light create a cozy and stylish corner. It's become my favorite spot to unwind with a good book.
Was nervous about the price but it's totally worth it. The geometric shapes are so unique.
Honestly such a cool piece, looks amazing in the corner.
Literally just set it down and plugged in, done.
Got another for the home office, obsessed.
Shipped fast, the matte finish is really nice in person.
Bought this for my best friend's new place, she loved it.
Literally just plugged it in, done.
Second one for the office, love these.
I was searching for a floor lamp that would make a statement, and this one does just that. It's both functional and artistic.
We placed this floor lamp in our living room, and it has become a conversation piece. The design is bold and artistic, and the light it emits is soft and inviting. It's a standout addition to our space.
This floor lamp has added a touch of elegance to our home office. The design is unique and stylish, and the light it provides is perfect for working and reading. It's both functional and beautiful.
We installed this lamp in our bedroom, and it has brightened up the space. The design is modern and chic, and the light it emits is warm and welcoming.
I love how this lamp blends seamlessly with our minimalist decor. It's a simple yet impactful addition to our home.
This floor lamp is exactly what our living room needed. The design is unique and adds character, while the light it provides is soft and flattering. It has elevated the entire room's aesthetic.
We added this floor lamp to our bedroom, and it has completely changed the ambiance. Plus, the design adds a touch of sophistication to the space.
I was looking for a floor lamp that was both functional and stylish, and this one fits the bill. The design is sleek and modern, and the light it provides is just right for our living room.
We installed this lamp in our living room, and it has made a significant impact. The design is eye-catching yet elegant, and the light it emits is warm and inviting. It's the perfect first impression for guests.
I recently redecorated my living room and added this lamp as a statement piece. I'm thrilled with how it enhances the room's atmosphere.
This floor lamp is just what I needed to change up the aesthetic of my home office! Well worth the purchase!
How many bulbs does this take? It says it’s iron but the photo looks like light is emitted from each component shape? Thank you.
This lamp only has a light bulb in the top lampshade; the other lampshades do not have a light source.
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