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Energizer 4.2W LED GLS Bulb B22 Daylight 6500K Non-Dimmable - 470lm

£149
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Energizer 4.2W LED GLS bulb uses a B22 bayonet cap and delivers 470 lumens at 6500K daylight colour temperature. The GLS (general lamp service) shape measures 60mm diameter by 109mm height and fits standard table lamps, ceiling pendants and wall lights across residential and commercial settings. The 4.2W draw replaces a 40W incandescent bulb, cutting energy consumption by approximately 89% while providing comparable light output.

Designed for spaces needing bright, cool-toned light, the 6500K output works in kitchens, home offices, workshops, garages and utility rooms where task visibility matters more than ambient warmth. The 240° beam angle distributes light broadly from the frosted glass envelope, avoiding the harsh directional effect of some LED bulbs. The B22 bayonet base installs with a push-and-twist action into UK-standard fittings without requiring adaptors or converters.

The bulb is rated for 15,000 hours at typical domestic use patterns, equating to approximately 15 years at an average of 3 hours per day. The non-dimmable circuitry keeps component costs down and makes the bulb compatible with standard on/off switches but incompatible with dimmer circuits. Energy rating E under current EU classifications reflects the shift in baseline standards as LED technology has become the norm rather than the exception.

Specification
Weight (KG) 0.03
Width (mm) 60
Height (mm) 109
Depth (mm) 60
Wattage 4.2W
Lumen 470
Lamp Shape GLS
Lamp Base B22
Energy Rating E
Kelvin 6,500K
Colour Temperature Daylight
Dimmable No
Beam Angle 240
LED or Halogen LED
Frequently Asked

Is this bulb dimmable?

No. The bulb is non-dimmable and should only be used with standard on/off switches. Installing it in a dimmer circuit may cause flickering, buzzing or premature failure.

What does 6500K daylight colour temperature look like?

6500K produces a bright, cool-toned white light with a slight blue tint, similar to midday sunlight on an overcast day. It's noticeably cooler and more clinical than the 2700K-3000K warm white used in living rooms and bedrooms.

What's the equivalent incandescent wattage?

This 4.2W LED bulb produces 470 lumens, roughly equivalent to a 40W incandescent bulb. The energy saving is approximately 89% compared to the older filament technology.

What is the B22 cap?

B22 is the standard UK bayonet cap fitting. The bulb has two pins on the side of the base that slot into matching grooves in the lampholder, then twists to lock in place. Most UK homes use B22 for ceiling lights and many table lamps.

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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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 B22 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 uses a B22 bayonet cap and delivers 470 lumens at 6500K daylight colour temperature. The GLS (general lamp service) shape measures 60mm diameter by 109mm height and fits standard table lamps, ceiling pendants and wall lights across residential and commercial settings. The 4.2W draw replaces a 40W incandescent bulb, cutting energy consumption by approximately 89% while providing comparable light output.

    Designed for spaces needing bright, cool-toned light, the 6500K output works in kitchens, home offices, workshops, garages and utility rooms where task visibility matters more than ambient warmth. The 240° beam angle distributes light broadly from the frosted glass envelope, avoiding the harsh directional effect of some LED bulbs. The B22 bayonet base installs with a push-and-twist action into UK-standard fittings without requiring adaptors or converters.

    The bulb is rated for 15,000 hours at typical domestic use patterns, equating to approximately 15 years at an average of 3 hours per day. The non-dimmable circuitry keeps component costs down and makes the bulb compatible with standard on/off switches but incompatible with dimmer circuits. Energy rating E under current EU classifications reflects the shift in baseline standards as LED technology has become the norm rather than the exception.

    Specification
    Weight (KG) 0.03
    Width (mm) 60
    Height (mm) 109
    Depth (mm) 60
    Wattage 4.2W
    Lumen 470
    Lamp Shape GLS
    Lamp Base B22
    Energy Rating E
    Kelvin 6,500K
    Colour Temperature Daylight
    Dimmable No
    Beam Angle 240
    LED or Halogen LED
    Frequently Asked

    Is this bulb dimmable?

    No. The bulb is non-dimmable and should only be used with standard on/off switches. Installing it in a dimmer circuit may cause flickering, buzzing or premature failure.

    What does 6500K daylight colour temperature look like?

    6500K produces a bright, cool-toned white light with a slight blue tint, similar to midday sunlight on an overcast day. It's noticeably cooler and more clinical than the 2700K-3000K warm white used in living rooms and bedrooms.

    What's the equivalent incandescent wattage?

    This 4.2W LED bulb produces 470 lumens, roughly equivalent to a 40W incandescent bulb. The energy saving is approximately 89% compared to the older filament technology.

    What is the B22 cap?

    B22 is the standard UK bayonet cap fitting. The bulb has two pins on the side of the base that slot into matching grooves in the lampholder, then twists to lock in place. Most UK homes use B22 for ceiling lights and many table lamps.

    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.