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Energizer 4.2W LED GLS Bulb E27 Warm White 2700K Non-Dimmable

£199
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Energizer 4.2W LED GLS bulb is a standard-shaped E27 screw-base bulb that produces 470 lumens of warm white 2700K light, equivalent to a traditional 40W incandescent bulb. The GLS (General Lighting Service) shape measures 60mm diameter by 128mm height, fitting standard table lamps, pendants, and ceiling fixtures that accept E27 Edison screw bulbs.

Designed for residential lighting in living rooms, bedrooms, hallways and dining areas where warm ambient light is preferred over task lighting, the 2700K colour temperature sits at the warmer end of the white spectrum and pairs well with traditional and contemporary interiors. The bulb is non-dimmable and delivers steady output without flicker when powered from standard 230V UK mains.

The bulb carries an Energy Rating of E and a claimed 15-year lifespan under typical residential use patterns, which Energizer bases on an average of 2.7 hours daily operation. The frosted glass envelope diffuses the internal LED filament to prevent visible hot spots and provides a soft, even light distribution similar to classic incandescent bulbs.

Specification
Width (mm) 60
Height (mm) 128
Depth (mm) 60
Wattage 4.2W
Lumen 470lm
Lamp Shape GLS
Lamp Base E27
Energy Rating E
Kelvin 2,700K
Colour Temperature Warm White
Dimmable No
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, as doing so can cause flickering, reduced lifespan, or damage to the bulb.

What does 2700K warm white look like?

2700K produces a warm, slightly yellow-toned white light similar to traditional incandescent bulbs. It creates a relaxed, comfortable atmosphere suited to living areas and bedrooms rather than task-focused spaces.

How does 470 lumens compare to old incandescent bulbs?

470 lumens is approximately equivalent to a traditional 40W incandescent bulb. This output suits smaller rooms, bedside lamps, and multi-bulb fixtures where individual bulbs provide ambient rather than primary light.

Will it fit my existing lamp?

The E27 (Edison screw) base is the standard large screw fitting used in most UK table lamps, pendants, and ceiling fixtures. The 60mm diameter GLS shape fits most standard lampshades and fittings designed for traditional bulbs.

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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Why Niori

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 4.2W LED GLS bulb is a standard-shaped E27 screw-base bulb that produces 470 lumens of warm white 2700K light, equivalent to a traditional 40W incandescent bulb. The GLS (General Lighting Service) shape measures 60mm diameter by 128mm height, fitting standard table lamps, pendants, and ceiling fixtures that accept E27 Edison screw bulbs.

    Designed for residential lighting in living rooms, bedrooms, hallways and dining areas where warm ambient light is preferred over task lighting, the 2700K colour temperature sits at the warmer end of the white spectrum and pairs well with traditional and contemporary interiors. The bulb is non-dimmable and delivers steady output without flicker when powered from standard 230V UK mains.

    The bulb carries an Energy Rating of E and a claimed 15-year lifespan under typical residential use patterns, which Energizer bases on an average of 2.7 hours daily operation. The frosted glass envelope diffuses the internal LED filament to prevent visible hot spots and provides a soft, even light distribution similar to classic incandescent bulbs.

    Specification
    Width (mm) 60
    Height (mm) 128
    Depth (mm) 60
    Wattage 4.2W
    Lumen 470lm
    Lamp Shape GLS
    Lamp Base E27
    Energy Rating E
    Kelvin 2,700K
    Colour Temperature Warm White
    Dimmable No
    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, as doing so can cause flickering, reduced lifespan, or damage to the bulb.

    What does 2700K warm white look like?

    2700K produces a warm, slightly yellow-toned white light similar to traditional incandescent bulbs. It creates a relaxed, comfortable atmosphere suited to living areas and bedrooms rather than task-focused spaces.

    How does 470 lumens compare to old incandescent bulbs?

    470 lumens is approximately equivalent to a traditional 40W incandescent bulb. This output suits smaller rooms, bedside lamps, and multi-bulb fixtures where individual bulbs provide ambient rather than primary light.

    Will it fit my existing lamp?

    The E27 (Edison screw) base is the standard large screw fitting used in most UK table lamps, pendants, and ceiling fixtures. The 60mm diameter GLS shape fits most standard lampshades and fittings designed for traditional bulbs.

    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.