Brass Dome · Mold-Blown Clear Glass · G9 Bi-Pin
A reimagined classic — the Darby pairs a soft, light-diffusing brass dome with a slender mold-blown clear glass cylinder that lets the bulb's filament show through with quiet character. The glass is intentionally transparent, with a subtle hand-textured surface that catches and refracts light. Refined warmth and timeless charm in equal measure.
See It In Action
Product overview
Body Finish — Choose at Checkout
Materials & Craft
Brass Body
Solid brass dome and arm — softly diffuses overhead light through its curved profile.
Clear Glass
Mold-blown transparent glass cylinder with subtle hand-textured surface — the bulb is visible through it.
G9 Bi-Pin
Compact G9 socket — slim, pin-base bulbs that disappear inside the slender glass cylinder.
Product Notes
| Dimensions | D 12.5 × H 51 cm / ∅ 4.9″ × H 20.1″ |
| Body material | Solid brass |
| Shade material | Transparent mold-blown glass — slightly textured surface, bulb visible through |
| Body finishes | Vibration Brushed Bronze · Black · Nickel |
| Socket type | G9 Bi-Pin Base |
| Bulb included | No — sold separately |
| Wiring | Hardwired wall installation |
| SKU | RDW-211527 |
Installation
- Hardwired wall installation — a licensed electrician is recommended.
- Fits a standard single-gang wall box. All mounting hardware is included.
- Dimmable when paired with a dimmable G9 LED bulb and a TRIAC-compatible wall dimmer switch.
- Recommended placement: at eye level (≈ 150 cm / 60″ from floor) for corridors and entries; 75–90 cm above the bedside surface for bedroom use.
FAQ
Is the glass cylinder clear or frosted? +
The glass is clear and transparent — mold-blown with a subtle hand-textured surface that gently catches the light. The bulb is visible through the glass when the lamp is lit, which is part of the Darby's design intent. Because of this, your bulb choice has a strong visual effect.
Which bulb do you recommend? +
A G9 bi-pin LED bulb in warm white (2700K), at 3–4W. Because the glass is transparent, the bulb's appearance matters: choose a small, slim G9 LED with a clean, narrow profile — vintage-style filament G9 bulbs look particularly elegant. Avoid oversized capsule bulbs that may show too prominently or sit too low in the cylinder.
What does "Vibration Brushed Bronze" actually look like? +
It's a warm, slightly weathered bronze tone with a fine vibration-brushed surface texture — not a high-gloss finish. The brushwork softens the bronze and gives it a hand-finished, tactile quality. Black and Nickel are flatter, more uniform finishes by comparison.
How big is this lamp? Will it look right above my bedside? +
The Darby is slim and tall — 12.5 cm wide and 51 cm tall (∅ 4.9″ × H 20.1″). It works beautifully as a vertical accent above a bedside table, beside a mirror, or framing an entryway. For wider spaces or as the only light source over a bed, consider pairing two side by side.
Is the lamp dimmable? +
Yes — paired with a dimmable G9 LED bulb and a TRIAC-compatible wall dimmer (e.g. Lutron Skylark, Leviton Decora), the Darby dims smoothly. Note: not all G9 LEDs are dimmable, so check the bulb specifications before purchasing.
Will the brass develop a patina? +
The Vibration Brushed Bronze finish is sealed and stable — it will not patina or tarnish significantly under normal indoor conditions. Black and Nickel finishes are also stable. If you prefer a finish that ages naturally over time, look at our other unsealed brass collections.
How do I clean the glass? +
Switch off the wall power and let the bulb cool. Wipe the clear glass cylinder with a soft cloth and mild glass cleaner — because the surface is textured, fingerprints and dust show easily, but they wipe off cleanly. Dust the brass body with a soft dry cloth.
Downloads
- 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 in the store. With Front Door Delivery, your item ships from our Distribution Center by UPS and arrives to your home within 4-6 weeks days of order receipt.
You can return eligible items within 30 days of receiving an order. Made-to-order items are not eligible.
10%
OFF
Use this code at checkout to enjoy a 10% discount on your entire purchase.
The metal that holds
the light of years.
Brass is the alloy civilisations reach for when they want light to last. Door pulls polished by three generations. Naval instruments still readable a century after the ship was scrapped. Church candelabra that outlive the parish. Radilum's American Brass Collection is built on that same expectation — fixtures forged from H65 cartridge brass, finished by hand, sealed against time, and meant to be the lamp your grandchildren still recognise.
The alloy that refuses to age.
Brass is a copper-zinc alloy whose first known smelting dates to roughly 500 BCE in the eastern Mediterranean — Greek artisans alloying calamine ore with native copper to produce a metal that struck like gold but bent like a tool. By the Roman imperial period, brass was the material of coinage, military fittings, and the household lamps that lit late-republic Rome. Two and a half millennia later it remains, by an enormous margin, the most-used non-ferrous engineering alloy on the planet — and the lighting industry's quiet workhorse.
What makes brass uniquely fit for lighting is a coincidence of properties no single-element metal achieves. Brass gives it warm chromatic depth and the specific red-yellow that reads as luxurious rather than industrial. Zinc hardens the alloy enough to hold sharp turned profiles, threaded fittings, and cast detail without the fragility of pure copper or the dullness of pure brass castings. The blend produces a metal that is workable when you need it to be — and rigid for the next century.
Of the dozen brass grades available to manufacturers, Radilum specifies H65 cartridge brass — 65% copper, 35% zinc. The name comes from its original use: military shell casings, where the metal had to absorb the shock of firing without splitting. That same toughness, applied to a lamp arm, means the part stays dimensionally stable under decades of thermal cycling, hardware tightening, and bulb replacement. Lower-copper alloys (H62, H59) are cheaper but more brittle. We do not use them.
The Radilum brass collection is built on a simple recognition that the wider lighting industry has spent the last two decades forgetting: that the cost difference between a true brass fixture and a brass-plated zinc one is measurable in years of service, not dollars at checkout.
Four properties that change everything
about how a lamp ages.
Most fixture materials are chosen for what the lamp looks like in the showroom photograph. Brass is one of the very few materials that earns its place over the next thirty years. The differences come down to four physical and aesthetic properties.
01 Mass that reads as quality
Solid H65 brass has a density of 8.5 g/cm³ — denser than steel, denser than cast iron, more than three times the weight of zinc-die-cast. A brass sconce of comparable size to a brass-plated zinc one will weigh nearly four times as much. You feel the difference the moment you lift the box. It's not marketing — it's chemistry.
02 Living finish, not a coating
Brass-plated finishes are paint that happens to be metallic. They scratch, chip, and reveal cheaper alloy underneath. Solid brass is the finish — what you see is the metal itself, polished or patinated. A scratch on plated brass is a flaw; a scratch on solid brass is a wear mark that polishes back out. This is why brass instruments survive a century of touring while plated hardware ages out of fashion in five years.
03 Naturally antimicrobial
Copper alloys are oligodynamic — meaning their surface ions disrupt microbial cell membranes on contact. The EPA registers solid brass and bronze as antimicrobial surfaces. A brass switch plate, lamp pull, or door fitting is meaningfully cleaner than the stainless steel equivalent. For high-touch fixtures (bedside lamps, hallway sconces) this matters more than the brochures usually mention.
04 A spectrum the eye reads as warm
Brass reflects light selectively across the visible spectrum — absorbing slightly more blue and green, reflecting more red and yellow. The result is that any light source mounted in or near a brass fixture acquires a faint warm wash. We design the LED specification with this shift in mind: a 2700K bulb behind brass reads as roughly 2550K to the eye, the colour of late-afternoon window light.
Six finishes. Six different conversations
between metal and room.
A single block of H65 can be finished in a dozen ways — and the finish, more than any other variable, decides the personality of the fixture. The atelier maintains six standard finishes and adds custom patinas on request. Physical samples are sent before final order on every project of three fixtures or more.
- Reflectivity~85%
- SealantIncralac
- Best forFormal rooms
- Reflectivity~35%
- TextureLinear satin
- Best forMost projects
- ToneAmber to black
- VariationEach unique
- Best forVintage interiors
- Reflectivity~5%
- EdgesBrass glint
- Best forModern luxe
- SealantNone
- PatinaContinuous
- Best forHeritage homes
- PlatingSatin nickel
- BodySolid H65
- Best forCool palettes
Beyond the six standard finishes — verdigris greens, oil-rubbed bronze, mirror-polished rose, custom matched samples on request. Discuss specifics with your project lead.
Four stages, weeks of hand work,
one lamp.
Every Radilum brass fixture moves through four production stages. We document each stage with timestamped photography that ships to the client with the order — not because the photographs sell anything, but because they're the only way to prove that what we say happened actually happened.
CNC tooling from the designer's drawing.
A designer's sketch becomes a parametric 3D model, then a five-axis CNC tool path, then the steel mould. Every dimension held to ±0.1 mm. We tool every fixture in-house.
H65 brass, sand-cast or forged.
H65 ingots melted to 1080°C — sand-cast for sculptural pieces, precision-forged for structural arms. Cast pieces receive a stress-relief anneal cycle to prevent later cracking.
Four to six grits, by one technician.
A single technician carries each fixture through four to six polishing stages — 240 grit to felt-wheel buff. The technician's mark is etched on the fitting plate.
Multi-layer sealant, tested for 25 years.
Three coats of imported Incralac — the conservation-grade lacquer used by museums on bronze sculpture. Accelerated-aging tests project 25+ years tarnish-free.
Five archetypes — the working portfolio.
Most projects begin from one of five standard categories. Every category scales from intimate residential to full-room hospitality; every category accepts any of the six standard finishes; every category ships UL-listed for North America (CE/SAA available on request).
Three principles drawn from two centuries
of American interior design.
The Radilum American Brass Collection is shaped by three lineages — Federal-era neoclassical proportion, the early-20th-century Arts & Crafts movement, and the mid-century industrial vernacular. The result is a portfolio that reads as American not because it is decorated with eagles and stars, but because it carries the same restraint and structural honesty that those three traditions share.
Restraint & Proportion
From Federal-era cabinetry: symmetry, balance, restraint. Arms stepped at golden-ratio intervals. Canopies sized to match the column they descend from. Nothing is decorative for decoration's sake. The grandeur is in the proportion, not the ornament.
Structural Honesty
From the Arts & Crafts vocabulary: function expressed, never disguised. Joinery shows. Fasteners are visible and intentional. The arm of a sconce is shaped because it must support a bulb — and that shape is the design. Nothing pretends to be what it isn't.
Classic Shades
From mid-century industrial: opal milk glass, fluted glass, woven linen, perforated metal mesh. Each shade has a hundred-year vocabulary behind it. We pair the shade to the fixture's intended room — not the photographer's preference for what reads on social media.
From first email to final install — one specialist, six to twelve weeks.
Every Radilum brass project is led by one project specialist from the day the brief arrives through the day the fixture lights up. There is no handover between sales, design, production, and shipping. The same person who answers your first email follows the polishing photographs and tracks the freight forwarder.
Begin with a brief, or a finish sample.
Whether you need a single bedside sconce or a hundred matched fixtures for a hospitality build-out, the first step is the same — write to us. The project specialist who reads your email is the one you'll work with from brief to install. Every email gets a real reply within 24 hours.
Fast Shipping
4-6 weeks for delivery
North American Certification
North American Certification Overview
Safety Payment
Secure payment with Multiple Credit Cards.
Size chart
| Size |
| area XS |
| Room XS |
| Size | DIA 2"-6" | DIA 6"-12" | DIA 12"-18" | DIA 20"-24" | DIA 24"-32" | DIA 32"-40" |
|---|---|---|---|---|---|---|
| area | 32-54 FT | 54-107 FT | 107-161 FT | 161-215 FT | 215-269 FT | 269-378 FT |
| Room | BATHROOM/AISLE | DINING ROOM | KITCHEN | BEDROOM | LIVING ROOM | COMMERCIAL INTERIOR |
* Sizes are American and expressed in inches.