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4W Dimmable LED Candle Filament Bulb - Clear, B22, 2700K

£399
The RRP is the manufacturer's recommended retail price of the item.
270 In Stock - Ready to Ship
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Description

The Knightsbridge 4W LED candle bulb uses visible filament technology inside a clear glass envelope to replicate the appearance of a traditional incandescent candle bulb while drawing 90% less power. The B22 bayonet base fits standard UK bayonet lamp holders, and the 35mm diameter candle shape suits exposed-bulb fittings where the lamp itself is part of the aesthetic.

Designed as a direct replacement for 40W incandescent candle bulbs in chandeliers, wall sconces, candelabra fittings and table lamps, the 4W LED produces 485lm at 2700K warm white. The 320-degree beam angle casts light in all directions rather than as a focused spot, making it suitable for general ambient lighting. The clear glass shows the LED filament arrangement when the bulb is off and when lit, so it pairs well with decorative fittings where the bulb is visible.

The bulb is dimmable with most trailing-edge LED dimmers, though compatibility should be tested before installation as performance varies between dimmer models. The 15,000-hour L70B50 rating means the bulb will maintain at least 70% of its initial 485lm output for 15,000 hours of typical use. At three hours per day, this translates to approximately 13 years of service. The CRI rating above 80 renders warm-toned interiors, wood finishes and skin tones accurately without the colour shift seen in cheaper LEDs.

Specification
Diameter 35 mm
Height 91 mm
Construction Glass
IP Rating IP20
Primary Voltage 230V 50Hz
Diffuser Clear
Lamp Technology LED Filament
Lamp Base B22d
Dimmable Yes*
L70B50 15000
Energy Rating (Class) post 2021 SLR E
Beam Angle 320
CCT 2700 K
Light Colour Warm White
Lumens 485 lm
Wattage 4
Efficacy 130.6 lm/W
CRI >80
Warranty 2
Downloads

Product Specification Sheet

Frequently Asked

Is this bulb dimmable?

Yes, it is compatible with most trailing-edge LED dimmers. Performance varies between dimmer models, so test compatibility before installing multiple bulbs. Leading-edge dimmers designed for older incandescent lamps may cause flicker or reduced dimming range.

What is the light output compared to an incandescent?

This 4W LED produces 485lm, equivalent to a 40W incandescent candle bulb. The 2700K colour temperature matches the warm white tone of traditional incandescent lamps.

Can it be used in enclosed fittings?

The IP20 rating means the bulb is suitable for dry indoor locations. It can be used in enclosed glass shades and lanterns provided there is some air circulation. Fully sealed airtight fittings may reduce lifespan due to heat build-up.

How long does the bulb last?

The L70B50 rating of 15,000 hours means the bulb will maintain at least 70% of its initial brightness for 15,000 hours. At three hours per day, this is approximately 13 years of use.

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

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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 Knightsbridge 4W LED candle bulb uses visible filament technology inside a clear glass envelope to replicate the appearance of a traditional incandescent candle bulb while drawing 90% less power. The B22 bayonet base fits standard UK bayonet lamp holders, and the 35mm diameter candle shape suits exposed-bulb fittings where the lamp itself is part of the aesthetic.

    Designed as a direct replacement for 40W incandescent candle bulbs in chandeliers, wall sconces, candelabra fittings and table lamps, the 4W LED produces 485lm at 2700K warm white. The 320-degree beam angle casts light in all directions rather than as a focused spot, making it suitable for general ambient lighting. The clear glass shows the LED filament arrangement when the bulb is off and when lit, so it pairs well with decorative fittings where the bulb is visible.

    The bulb is dimmable with most trailing-edge LED dimmers, though compatibility should be tested before installation as performance varies between dimmer models. The 15,000-hour L70B50 rating means the bulb will maintain at least 70% of its initial 485lm output for 15,000 hours of typical use. At three hours per day, this translates to approximately 13 years of service. The CRI rating above 80 renders warm-toned interiors, wood finishes and skin tones accurately without the colour shift seen in cheaper LEDs.

    Specification
    Diameter 35 mm
    Height 91 mm
    Construction Glass
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Diffuser Clear
    Lamp Technology LED Filament
    Lamp Base B22d
    Dimmable Yes*
    L70B50 15000
    Energy Rating (Class) post 2021 SLR E
    Beam Angle 320
    CCT 2700 K
    Light Colour Warm White
    Lumens 485 lm
    Wattage 4
    Efficacy 130.6 lm/W
    CRI >80
    Warranty 2
    Downloads

    Product Specification Sheet

    Frequently Asked

    Is this bulb dimmable?

    Yes, it is compatible with most trailing-edge LED dimmers. Performance varies between dimmer models, so test compatibility before installing multiple bulbs. Leading-edge dimmers designed for older incandescent lamps may cause flicker or reduced dimming range.

    What is the light output compared to an incandescent?

    This 4W LED produces 485lm, equivalent to a 40W incandescent candle bulb. The 2700K colour temperature matches the warm white tone of traditional incandescent lamps.

    Can it be used in enclosed fittings?

    The IP20 rating means the bulb is suitable for dry indoor locations. It can be used in enclosed glass shades and lanterns provided there is some air circulation. Fully sealed airtight fittings may reduce lifespan due to heat build-up.

    How long does the bulb last?

    The L70B50 rating of 15,000 hours means the bulb will maintain at least 70% of its initial brightness for 15,000 hours. At three hours per day, this is approximately 13 years of use.

    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.