Dimmable LED Bulb E27 4W 20lm Warm White

This is a decorative LED filament bulb with a flame-shaped body of copper-coloured glass, rippled and twisted along its length so the surface catches light from every side. Inside, a slender spiral filament rises through the glass, and an E27 screw cap sits at the base, so it fits any E27 screw lampholder. It is 25.5cm long and 7.8cm across, a generous size that is meant to be seen rather than hidden inside a shade. It draws 4W and gives 20lm at 2000K, a deep amber glow close to candlelight. It is rated IP20, which settles where it belongs: indoors, in dry rooms.

With an output of just 20lm, this copper bulb is a mood light rather than a reading light, so pair it with brighter lighting wherever you need to see properly. We would fit it in a simple bare pendant over a dining table, in a hallway or above a home bar, where the glass itself is the point and a soft glow is all the space needs. It suits a cluster of pendants too, or an open-cage lamp in a living room or bedroom, where it adds warm colour through the evening. Because it is dimmable, you can bring it right down for a candlelit supper and raise it again when friends arrive.

The body is copper-tinted glass, finished with a gold-toned screw cap, and the ripples in the glass catch the filament's warm glow along their edges. It runs on a 220-240V, 50/60Hz mains supply, the standard household voltage, and draws only 4W, so it can glow for a whole evening on very little power. Packed, it weighs 0.216KG. Before you buy, check that your pendant, lamp or shade leaves enough clearance for its 25.5cm length, since this is a bulb that wants open space around it.

Which lampholder does this bulb fit?

It has an E27 screw cap, so it fits any E27 screw lampholder, the larger screw size used on many pendants and lamps.

Can this bulb be used outdoors or in a bathroom?

No. It is rated IP20, so it belongs indoors in dry rooms and should be kept away from bathrooms, outdoor fittings and anywhere damp.

How bright is the bulb?

It gives 20lm at 2000K from 4W, a soft, deep amber glow for mood lighting rather than light for reading or close work.

Is the bulb dimmable?

Yes, it is dimmable, so you can lower it to a gentle glow for dinner or a quiet evening and raise it again whenever you like.

How big is the bulb?

It is 25.5cm long and 7.8cm across, so check that your shade or lampholder leaves enough room for its length before you buy.

What colour is the glass?

The glass is copper-coloured, with a rippled, twisted surface that catches the light, and it sits on a gold-toned E27 screw cap.