4000K Light Bulbs

4000K light bulbs offer what many consider the perfect balance - a bright, clean light that’s ideal for task lighting, without being overly harsh or stark. They’re suitable for a wide variety of applications, from kitchens and bathrooms to offices and workshops. Whether you're looking for a classic GLS bulb, a stylish Edison-style filament bulb, or a modern spotlight, 4000K offers fantastic versatility.

We offer a wide range of 4000K bulbs in different shapes, sizes, and fittings. Browse our collection and use the filters to refine your search by base type, wattage, bulb shape, or any other criteria that are important to you. We’re confident you’ll find the perfect 4000K light bulb for your needs.
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  • Main image of virgo led gls bulb a60 e27 edison screw 7w 2700k warm white pack of 6Main image of virgo led gls bulb a60 e27 edison screw 7w 2700k warm white pack of 10
    15% off

    Virgo LED GLS Bulb A60 E27 Edison Screw

    £7.19
    £7.19 £8.47
    In stock
    More options
    2 Light Colours, 4 Powers, 2 Sizes
  • Main photo of dimmable 7w 10w 12w a60 gls edison screw led light bulb pack of 2 warm white or cool whiteMain photo of dimmable 7w 10w 12w a60 gls edison screw led light bulb pack of 4 warm white or cool white
    31% off

    Virgo LED GLS Bulb A60 Dimmable E27 Edison Screw

    £5.90
    £5.90 £8.56
    In stock
    More options
    2 Light Colours, 3 Powers, 2 Sizes
  • Main photo of dimmable 7w 10w 12w a60 gls b22 bayonet cap led light bulb pack of 2 warm white or cool whiteMain photo of dimmable 7w 10w 12w a60 gls b22 bayonet cap led light bulb pack of 4 warm white or cool white
    28% off

    Leo LED GLS Bulb A60 Dimmable B22 Bayonet Cap

    £6.16
    £6.16 £8.56
    In stock
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    2 Light Colours, 3 Powers, 2 Sizes
  • Close up of lepus led spot bulb mr16 dimmable gu10 7w 3000k warm white pack of 6Visual representation of product measurement and certification of lepus led spot bulb mr16 dimmable gu10 7w 3000k warm white pack of 6
    32% off

    Lepus LED Spot Bulb PAR16 Dimmable GU10 7W Pack of 6

    £9.66
    £9.66 £14.30
    In stock
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    Close up of lepus led spot bulb mr16 dimmable gu10 7w 3000k warm white pack of 6Lepus LED Spot Bulb PAR16 Dimmable GU10 7W Pack of 6 - 4000K Cool WhiteDimmable GU10 LED spot light bulb cct 5000K cool white pack of 6

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Here are some frequently asked questions by our customers

What is the benefit of 4000K light bulbs?

4000K light bulbs give off what’s known as a “cool white” light. They help you focus, which is why they are often chosen for workspaces, kitchens, garages and bathrooms. They’re ideal for task lighting and make colours appear more vibrant. They also tend to be more energy-efficient, which means lower running costs.

Are 4000K light bulbs suitable for every room?

While personal preference plays a big part, some people might find that 4000K light bulbs are too bright for living rooms, dining rooms, or bedrooms where a more relaxing ambience is usually preferred. If that sounds like you, you’ll be better off with 2700K-3000K bulbs.

What different types of 4000K bulbs are available?

We offer a variety of 4000K bulbs, including spotlights, golf balls, candles, GLS bulbs, and Edison bulbs. You can browse our range by filtering by shape, fitting and features like dimmability.