Endon Helix E27 LED 4W Filament Bulb - 1800K - Non-Dimmable - Smoked Glass

A Filament With a Twist

The Helix bulb takes the classic filament shape and gives it a playful update, a double helix filament twisted into a spiral inside a smoked glass envelope. At 4 watts it draws very little power while producing 50 lumens, casting a warm, atmospheric 1800K glow that feels more like candlelight than a conventional bulb.

Smoked Glass, Warm Character

The tinted smoked glass softens the light and lets the twisted filament show through as a visible feature rather than hiding it behind frosted or opal glass. It suits fittings finished in dark metals, brass, or aged bronze, where the bulb itself becomes part of the look rather than disappearing into the fitting.

How It Works

This is an E27 fitting LED filament bulb rated at 4W, producing 50 lumens at a 1800K colour temperature. It is not dimmable, so it is best paired with fittings and switches that do not require a dimmer. Simply fit it into any standard E27 lamp holder.

Where It Works Best

Because the bulb itself is the main feature, it works best in exposed pendant fittings or wall lights where there is nothing hiding the filament from view. Its low output of 50 lumens makes it suited to ambient or mood lighting rather than task lighting, so think living rooms, hallways, or dining areas where a soft glow is more important than brightness.

Made By Endon Lighting

Across a design heritage spanning more than 80 years, Endon Lighting has grown into a British decorative lighting brand guided by a UK based design team who favour contemporary influences layered onto timeless decorative styles. That approach shows up clearly in the Helix bulb, where a double helix filament is left on display inside smoked glass rather than hidden away, treating the bulb itself as a feature. It is the kind of detail that reflects Endon's wider focus on lighting built for modern interiors.

Good to Know

• Bulb fitting: E27
• Wattage: 4W LED
• Light output: 50 lumens
• Colour temperature: 1800K
• Dimmable: No
• Dimensions: Height 24.2cm, Diameter 19cm
• Weight: 0.27kg
• Material: Glass and steel
• IP rating: IP20
• Warranty: 2 years

Questions People Ask

Can this bulb be dimmed?
No, this Helix bulb is not dimmable, so it should be used with fittings and switches that do not have dimming.

What kind of fitting suits this bulb best?
Exposed pendant fittings or wall lights work best, since the smoked glass and twisted filament are designed to be seen rather than covered by a shade.

Is this bulb bright enough for task lighting?
Not really, at 50 lumens and a warm 1800K tone it is designed for ambient, mood style lighting rather than reading or task use.

Height: 24.2cm
Diameter: 19cm

We offer free standard delivery on orders within the UK Mainland* (an additional fee applies for the Isle of Wight, the Isle of Man, the Scottish Isles, parts of Scotland, Northern Ireland, the Republic of Ireland, the Channel Isles and International).

*Collingwood orders under £150 incur a delivery fee of £9.95 inc. VAT.
*Any order under £49 incurs a delivery fee of £9.95.