A replacement LED Edison-style bulb featuring a 4W 18K gold-wire LED filament inside clear glass. Designed to maintain the warm, vintage filament aesthetic of Radilum fixtures while drawing minimal energy. Available in two sizes to match the original bulbs in different fixtures.
Sizes
Specifications
| SKU | RDB-115404 |
| Bulb Type | Edison-style LED filament bulb |
| Filament | 18K gold-wire LED filament — warm vintage glow |
| Materials | Aluminum base · Clear glass envelope |
| Socket | E26 (North America) / E27 (EU/UK/AU) |
| Power | 4W |
| Color Temperature | Warm white |
| Voltage | AC 110–240V · Universal |
| Intended Use | Replacement bulb for Radilum fixtures only — not a standalone product |
FAQ
I'm not a Radilum customer — can I still order this? +
No. We only fulfill orders from existing Radilum fixture owners. Standalone orders from new customers will be refunded and not shipped. For a general E26/E27 LED bulb please purchase from Amazon or a local lighting supplier — you'll get faster shipping and broader compatibility for non-Radilum fixtures.
Which size matches my fixture? +
The Small (∅ 4.5 × H 7.5 cm) matches most compact Radilum E26/E27 fixtures. The Large (∅ 6 × H 10 cm) is for fixtures with visible bulbs designed to show a fuller Edison-style silhouette. If you're not sure which size your fixture takes, contact us with your original order number and we'll confirm before shipping.
What's the 18K gold-wire LED filament? +
The internal LED filament wire is plated in 18K gold. This produces a warmer visual tone in the filament itself (compared to standard silver-wire LEDs), better matching the vintage Edison aesthetic of Radilum fixtures.
Is it dimmable? +
The standard build is non-dimmable. If you specifically need a dimmable replacement bulb to match a dimmable Radilum fixture, contact us with your order number and we'll advise.
- 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.
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OFF
Use this code at checkout to enjoy a 10% discount on your entire purchase.
Fast Shipping
4-6 weeks for delivery
North American Certification
North American Certification Overview
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Measuring for Pendant Lighting
When installing pendants and chandeliers, it’s important to consider how you want your fixtures to hang in relation to the other furnishings in your space. Read on for our recommendations on how to hang the perfect light.
Kitchen
Aim for 30–36″ from the bottom of your fixture’s shade to the top of your island or countertop. Space multiple pendants 26–30″ apart. For a sense of proportion and balance, allow 12″ from the outermost fixture to the edge of your counter.
Dining Room
For optimal lighting and visibility, the bottom of your pendant should sit 30″ from the surface of your dining table. To scale your fixture, take the length and width of the room in feet, then convert that to inches. For a 10′ by 14′ room, the chandelier should be about 24″ wide.
Bedroom
If you’re hanging a pendant above a nightstand, allow for at least 30″ between the bottom of the shade and your nightstand’s surface. To keep the look balanced, center your pendant over your nightstand.