E27 GLS 4W Filament 320° 250lm LED Bulb - Warm White

This E27 GLS LED bulb takes the classic A60 household shape, the familiar rounded outline that sits neatly in pendants, table lamps and open fittings. It draws 4W and gives 250 lumens through a wide 320 degree beam, so the light spreads almost all the way round rather than throwing in one direction. The colour is a super warm 1800K amber tone, deep and low like an old incandescent at the end of the evening. For anyone shopping by the American term, this is the equivalent of an A19 light bulb on an E27 screw cap, the standard Edison Screw fitting.

Because the output is gentle and the tone is so warm, this bulb is best read as an atmosphere light rather than a working one. It suits a bedside lamp, a hallway pendant, a snug corner lamp or a bar of exposed fittings over a counter, where the visible filaments are part of the look. The 320 degree spread means it lights a room evenly from a clear glass enclosure rather than casting a harsh pool, and the modest 250 lumens keep the mood low and relaxed instead of bright. It is an indoor bulb only, rated IP20, so keep it clear of bathrooms, porches and anywhere damp.

The vintage character comes from the LED filaments themselves, slim glowing strips set inside clear glass that mimic a traditional carbon-filament lamp. The cap is E27 Edison Screw and the body measures 60 mm across by 108 mm long, weighing just 34 g. Colour rendering is Ra 80 and rated life is 15,000 hours, with efficiency of 63 lm/W from the 4W draw on 220 to 240V AC. This bulb is non-dimmable, so pair it with a standard switched fitting. Other shapes and caps in the same filament range are available if you need to match several fittings.

Product Specification Sheet

Range Datasheet

Which fitting does this bulb need?

It has an E27 cap, also called Edison Screw or ES, which is the larger screw-in fitting used on most pendants and table lamps. Simply screw it into any standard E27 holder. It will not fit smaller E14 or bayonet sockets.

What old-style bulb does a 4W LED replace?

At 250 lumens this is a low, atmospheric output rather than a main-room bulb, closer in feel to a dim decorative incandescent than a bright 40W or 60W lamp. The 1800K amber tone is deliberately deep and warm, so think of it as a mood light for lamps and exposed fittings rather than a task light.

Is this bulb dimmable?

No, this is a non-dimmable bulb, so it should be used with a standard on or off switch. Fitting it to a dimmer circuit can cause flicker or buzz and may shorten its life. If you need adjustable brightness, choose a bulb marked as dimmable.

Can I use it outdoors or in a bathroom?

No, it is rated IP20 for dry indoor use only and has clear glass with exposed filament detailing. Keep it out of bathrooms, porches, gardens and any damp or exposed location. It is made for indoor lamps and fittings in living areas, bedrooms and hallways.