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Energizer 4.5W LED PLS 2-Pin Bulb G23 - Cool White 4000K Non-Dimmable

£299
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Description

The Energizer 4.5W LED PLS is a 2-pin retrofit bulb with a G23 base, designed to replace 9W compact fluorescent lamps in desk lights, cabinet fittings, and signage. The twin-tube PLS form factor delivers 370 lumens of cool white 4000K light through an LED core that switches on instantly without the warm-up delay or flicker characteristic of older CFL technology.

Designed for commercial and residential applications where compact fittings are already installed, this bulb slots directly into existing G23 2-pin sockets without rewiring or adaptor plates. The 4000K colour temperature produces a neutral white that suits office task lighting, bathroom mirror lights, retail display cases, and hospitality washroom fittings where a clean, functional light is required rather than a warm ambient glow.

The 4.5W LED draws half the power of the 9W CFL it replaces while delivering comparable light output, which reduces running costs in fittings that operate for extended hours. The bulb is rated energy class E under current UK regulations and carries a 30-year lifespan claim from Energizer based on typical domestic use patterns. The twin-tube shape maintains even light distribution across the length of the bulb, avoiding the hot-spot effect sometimes seen in single-tube LED retrofits.

This is a non-dimmable bulb and must not be used with dimmer switches or variable controls. The G23 2-pin base is found in many compact fluorescent fittings produced from the 1990s onwards, particularly in task lighting and architectural detail fittings where space constraints rule out standard ES or BC bulbs.

Specification
Wattage 4.5W
Lumen 370lm
Lamp Shape PLS
Lamp Base G23
Energy Rating (New Regs) E
Kelvin 4,000K
Colour Temperature Cool White
Dimmable? No
LED or Halogen LED
Frequently Asked

What does G23 2-pin mean?

G23 refers to a compact fluorescent lamp base with two parallel pins spaced 23mm apart. This base type is common in compact desk lights, cabinet fittings, and architectural detail lighting produced from the 1990s onwards. The bulb pushes into the socket and is held by a twist-lock or clip mechanism depending on the fitting.

Will this replace my old 9W CFL?

Yes. This 4.5W LED is designed as a direct replacement for 9W compact fluorescent PLS bulbs with a G23 base. The light output is comparable at 370 lumens, but the LED switches on instantly and uses half the power.

Can this be used with a dimmer?

No. This bulb is non-dimmable and must not be used with dimmer switches or variable controls. Attempting to dim a non-dimmable LED can cause flickering, buzzing, or premature failure.

What is the difference between 4000K and 3000K?

4000K is a cool white light with a neutral tone that suits task lighting, offices, and functional spaces. 3000K is a warm white with a yellowish cast that suits living rooms and bedrooms. This bulb is 4000K, making it better suited to workspaces than ambient lighting.

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 Energizer 4.5W LED PLS is a 2-pin retrofit bulb with a G23 base, designed to replace 9W compact fluorescent lamps in desk lights, cabinet fittings, and signage. The twin-tube PLS form factor delivers 370 lumens of cool white 4000K light through an LED core that switches on instantly without the warm-up delay or flicker characteristic of older CFL technology.

    Designed for commercial and residential applications where compact fittings are already installed, this bulb slots directly into existing G23 2-pin sockets without rewiring or adaptor plates. The 4000K colour temperature produces a neutral white that suits office task lighting, bathroom mirror lights, retail display cases, and hospitality washroom fittings where a clean, functional light is required rather than a warm ambient glow.

    The 4.5W LED draws half the power of the 9W CFL it replaces while delivering comparable light output, which reduces running costs in fittings that operate for extended hours. The bulb is rated energy class E under current UK regulations and carries a 30-year lifespan claim from Energizer based on typical domestic use patterns. The twin-tube shape maintains even light distribution across the length of the bulb, avoiding the hot-spot effect sometimes seen in single-tube LED retrofits.

    This is a non-dimmable bulb and must not be used with dimmer switches or variable controls. The G23 2-pin base is found in many compact fluorescent fittings produced from the 1990s onwards, particularly in task lighting and architectural detail fittings where space constraints rule out standard ES or BC bulbs.

    Specification
    Wattage 4.5W
    Lumen 370lm
    Lamp Shape PLS
    Lamp Base G23
    Energy Rating (New Regs) E
    Kelvin 4,000K
    Colour Temperature Cool White
    Dimmable? No
    LED or Halogen LED
    Frequently Asked

    What does G23 2-pin mean?

    G23 refers to a compact fluorescent lamp base with two parallel pins spaced 23mm apart. This base type is common in compact desk lights, cabinet fittings, and architectural detail lighting produced from the 1990s onwards. The bulb pushes into the socket and is held by a twist-lock or clip mechanism depending on the fitting.

    Will this replace my old 9W CFL?

    Yes. This 4.5W LED is designed as a direct replacement for 9W compact fluorescent PLS bulbs with a G23 base. The light output is comparable at 370 lumens, but the LED switches on instantly and uses half the power.

    Can this be used with a dimmer?

    No. This bulb is non-dimmable and must not be used with dimmer switches or variable controls. Attempting to dim a non-dimmable LED can cause flickering, buzzing, or premature failure.

    What is the difference between 4000K and 3000K?

    4000K is a cool white light with a neutral tone that suits task lighting, offices, and functional spaces. 3000K is a warm white with a yellowish cast that suits living rooms and bedrooms. This bulb is 4000K, making it better suited to workspaces than ambient lighting.

    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.