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4W Dimmable LED Candle Filament Bulb - Frosted E14 2700K

£399
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge 4W LED candle bulb features a frosted glass envelope housing LED filaments that replicate the appearance of a traditional incandescent lamp. The E14 small Edison screw base fits chandeliers, wall lights and table lamps designed for candle-shaped bulbs, delivering 470 lumens of 2700K warm white light at 116 lumens per watt efficiency.

Designed as a direct replacement for 40W incandescent candle bulbs, the 4W LED provides equivalent brightness while drawing 90% less power. The frosted glass diffuses light evenly in all directions with a 325-degree beam angle, making it suitable for both enclosed and open fittings. The 35mm diameter and 98mm height match standard candle bulb proportions, fitting within most shade apertures and decorative housings.

The bulb is dimmable when paired with compatible trailing-edge dimmers, allowing output to be adjusted from full brightness down to a low glow depending on the room context. The LED filament construction gives an L70B50 rated lifespan of 15,000 hours, which translates to approximately 13 years of use at three hours per day. The opal diffuser softens the LED point sources visible through the frosted envelope, reducing glare while maintaining the warm tonal quality of 2700K output.

Specification
Diameter 35 mm
Height 98 mm
Construction Glass
IP Rating IP20
Primary Voltage 230V 50Hz
Diffuser Opal
Lamp Technology LED Filament
Lamp Base E14
Dimmable Yes*
L70B50 15000
Energy Rating (Class) post 2021 SLR E
Beam Angle 325
CCT 2700 K
Light Colour Warm White
Lumens 470 lm
Wattage 4
Efficacy 116.3 lm/W
CRI >80
Warranty 2
Downloads

Product Specification Sheet

Frequently Asked

Is this bulb dimmable?

Yes. The bulb is compatible with most trailing-edge dimmers. Knightsbridge recommends checking dimmer compatibility before installation, as performance can vary between dimmer models and manufacturers.

What wattage incandescent does this replace?

The 4W LED delivers 470 lumens, equivalent to a 40W incandescent candle bulb. The LED draws 90% less power while producing the same light output.

What colour temperature does it produce?

The bulb outputs 2700K warm white light, matching the tone of traditional incandescent lamps. This colour temperature suits living rooms, dining rooms and bedrooms where a warm ambient feel is preferred.

How long does the bulb last?

The L70B50 rating of 15,000 hours means the bulb will maintain at least 70% of its original brightness after 15,000 hours of use. At three hours per day, this equates to approximately 13 years before replacement is needed.

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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    Description

    The Knightsbridge 4W LED candle bulb features a frosted glass envelope housing LED filaments that replicate the appearance of a traditional incandescent lamp. The E14 small Edison screw base fits chandeliers, wall lights and table lamps designed for candle-shaped bulbs, delivering 470 lumens of 2700K warm white light at 116 lumens per watt efficiency.

    Designed as a direct replacement for 40W incandescent candle bulbs, the 4W LED provides equivalent brightness while drawing 90% less power. The frosted glass diffuses light evenly in all directions with a 325-degree beam angle, making it suitable for both enclosed and open fittings. The 35mm diameter and 98mm height match standard candle bulb proportions, fitting within most shade apertures and decorative housings.

    The bulb is dimmable when paired with compatible trailing-edge dimmers, allowing output to be adjusted from full brightness down to a low glow depending on the room context. The LED filament construction gives an L70B50 rated lifespan of 15,000 hours, which translates to approximately 13 years of use at three hours per day. The opal diffuser softens the LED point sources visible through the frosted envelope, reducing glare while maintaining the warm tonal quality of 2700K output.

    Specification
    Diameter 35 mm
    Height 98 mm
    Construction Glass
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Diffuser Opal
    Lamp Technology LED Filament
    Lamp Base E14
    Dimmable Yes*
    L70B50 15000
    Energy Rating (Class) post 2021 SLR E
    Beam Angle 325
    CCT 2700 K
    Light Colour Warm White
    Lumens 470 lm
    Wattage 4
    Efficacy 116.3 lm/W
    CRI >80
    Warranty 2
    Downloads

    Product Specification Sheet

    Frequently Asked

    Is this bulb dimmable?

    Yes. The bulb is compatible with most trailing-edge dimmers. Knightsbridge recommends checking dimmer compatibility before installation, as performance can vary between dimmer models and manufacturers.

    What wattage incandescent does this replace?

    The 4W LED delivers 470 lumens, equivalent to a 40W incandescent candle bulb. The LED draws 90% less power while producing the same light output.

    What colour temperature does it produce?

    The bulb outputs 2700K warm white light, matching the tone of traditional incandescent lamps. This colour temperature suits living rooms, dining rooms and bedrooms where a warm ambient feel is preferred.

    How long does the bulb last?

    The L70B50 rating of 15,000 hours means the bulb will maintain at least 70% of its original brightness after 15,000 hours of use. At three hours per day, this equates to approximately 13 years before replacement is needed.

    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.