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Energizer 4W LED GLS Filament Bulb E27 2700K Non-Dimmable - Warm White

£199
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Description

The Energizer 4W LED GLS filament bulb is a direct replacement for traditional 40W incandescent bulbs, delivering 470 lumens of warm white 2700K light while consuming just 4W of power. The visible LED filaments inside a clear glass globe replicate the appearance of classic incandescent bulbs, making this suitable for exposed-bulb fittings where the bulb itself becomes part of the design.

The E27 Edison screw base fits standard UK and European lamp holders in table lamps, pendant shades, wall lights and ceiling fittings. The 60mm globe diameter and 109mm overall height suit most lampshades and open fittings without protruding or overwhelming the fitting itself. The non-dimmable design works on standard mains-switched circuits without requiring dimmer compatibility checks.

The 2700K colour temperature produces a warm, amber-tinted white light comparable to traditional tungsten bulbs, suited to living rooms, bedrooms and dining areas where warmer tones are preferred over cooler daylight whites. The 320-degree beam angle spreads light widely rather than focusing it in a narrow cone, giving even illumination across a room when used in ceiling or pendant fittings. The Energy Rating E reflects current LED efficiency standards, with the 4W consumption translating to approximately 90% lower running costs compared to the 40W incandescent bulb it replaces.

Specification
Weight (KG) 0.03
Width (mm) 60
Height (mm) 109
Depth (mm) 60
Wattage 4W
Lumen 470
Lamp Shape GLS
Lamp Base E27
Energy Rating E
Kelvin 2,700K
Colour Temperature Warm White
Dimmable No
Beam Angle 320
LED or Halogen LED
Frequently Asked

Is this bulb dimmable?

No. This is a non-dimmable LED bulb and should not be used with dimmer switches. Installing it on a dimmer circuit may cause flickering, buzzing or premature failure. For dimmable alternatives, search for "dimmable E27 LED" at Niori.

What is the lifespan?

Energizer rates this bulb at 15,000 hours typical lifespan. At an average use of 3 hours per day, that equates to approximately 13-14 years before replacement is needed.

How does 470 lumens compare to older bulbs?

470 lumens is equivalent to the light output of a traditional 40W incandescent bulb. This makes it suitable for bedside lamps, table lamps, and small to medium pendant shades, but not for primary room lighting in larger spaces.

Will it fit my existing lamp holder?

The E27 Edison screw base is the standard large screw fitting used in most UK table lamps, floor lamps and pendant shades. Check your existing bulb base before ordering — E27 is larger than the E14 small Edison screw used in candelabra and some wall lights.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

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Over 20 years lighting homes worldwide

We are a specialist lighting and mirror retailer with showrooms in Birmingham, Hong Kong and Dubai, shipping to customers around the world. Our own design team is here to help, from first idea to final fitting.

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Every product arrives brand new with the full manufacturer warranty. Found it cheaper elsewhere? Ask us about a price match.

Light source

Takes standard bulbs

Takes standard E27 bulbs, so you choose the brightness and colour to suit the room.

Ordering with us

Free delivery over £99

Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

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    Description

    The Energizer 4W LED GLS filament bulb is a direct replacement for traditional 40W incandescent bulbs, delivering 470 lumens of warm white 2700K light while consuming just 4W of power. The visible LED filaments inside a clear glass globe replicate the appearance of classic incandescent bulbs, making this suitable for exposed-bulb fittings where the bulb itself becomes part of the design.

    The E27 Edison screw base fits standard UK and European lamp holders in table lamps, pendant shades, wall lights and ceiling fittings. The 60mm globe diameter and 109mm overall height suit most lampshades and open fittings without protruding or overwhelming the fitting itself. The non-dimmable design works on standard mains-switched circuits without requiring dimmer compatibility checks.

    The 2700K colour temperature produces a warm, amber-tinted white light comparable to traditional tungsten bulbs, suited to living rooms, bedrooms and dining areas where warmer tones are preferred over cooler daylight whites. The 320-degree beam angle spreads light widely rather than focusing it in a narrow cone, giving even illumination across a room when used in ceiling or pendant fittings. The Energy Rating E reflects current LED efficiency standards, with the 4W consumption translating to approximately 90% lower running costs compared to the 40W incandescent bulb it replaces.

    Specification
    Weight (KG) 0.03
    Width (mm) 60
    Height (mm) 109
    Depth (mm) 60
    Wattage 4W
    Lumen 470
    Lamp Shape GLS
    Lamp Base E27
    Energy Rating E
    Kelvin 2,700K
    Colour Temperature Warm White
    Dimmable No
    Beam Angle 320
    LED or Halogen LED
    Frequently Asked

    Is this bulb dimmable?

    No. This is a non-dimmable LED bulb and should not be used with dimmer switches. Installing it on a dimmer circuit may cause flickering, buzzing or premature failure. For dimmable alternatives, search for "dimmable E27 LED" at Niori.

    What is the lifespan?

    Energizer rates this bulb at 15,000 hours typical lifespan. At an average use of 3 hours per day, that equates to approximately 13-14 years before replacement is needed.

    How does 470 lumens compare to older bulbs?

    470 lumens is equivalent to the light output of a traditional 40W incandescent bulb. This makes it suitable for bedside lamps, table lamps, and small to medium pendant shades, but not for primary room lighting in larger spaces.

    Will it fit my existing lamp holder?

    The E27 Edison screw base is the standard large screw fitting used in most UK table lamps, floor lamps and pendant shades. Check your existing bulb base before ordering — E27 is larger than the E14 small Edison screw used in candelabra and some wall lights.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.