JCB LED GU10 Bulb, 5W, 370 Lumen, Cool White 4000K, Boxed

This JCB LED GU10 bulb gives a bright 370 lumens of 4000K cool white light from just 5W, making it a low-energy, twist-fit replacement for an old halogen GU10 spotlight. It runs directly from standard UK mains with no transformer or separate driver needed, and this listing is for the individually boxed version, supplied in its own retail box rather than loose or as part of a bulk trade pack.

Key features

• 5W LED, drawing a fraction of the power of an equivalent halogen GU10
• 370 lumens output
• 4000K cool white colour temperature
• Standard GU10 twist-and-lock base
• Runs on 220-240V mains, no transformer or driver required
• Individually boxed for retail display and sale

What this bulb is best for

4000K cool white light is a crisp, neutral-to-cool tone that suits kitchens, bathrooms, utility rooms, home offices, and workspaces where clarity and alertness matter more than a cosy glow. It's a straightforward swap for anyone replacing a blown or discontinued halogen GU10 spotlight with an LED equivalent in an existing downlight fitting.

How to fit it

1. Switch off the power at the wall or consumer unit before changing any bulb
2. If replacing an old bulb, let it cool down fully before touching it
3. Twist the old bulb anticlockwise to release it from the GU10 fitting
4. Line up the two pins on the new JCB GU10 bulb and twist clockwise until it locks into place
5. Restore power and test the light. No transformer or driver is needed for this LED GU10

Frequently asked questions

What does "Boxed" mean for this JCB bulb?

It means this bulb is supplied individually boxed for retail, in its own printed packaging, rather than loose or as part of a bulk trade sleeve. It's the version intended for single sale rather than a multi-lamp contractor pack.

What halogen wattage does this 5W JCB GU10 replace?

As a general guide, LED GU10s in the 370 lumen output range typically replace a 40-50W halogen GU10, giving similar brightness for a fraction of the running cost. Always check the light level suits your room before buying multiples.

What beam angle does this JCB GU10 bulb have, and what rooms suit it?

This bulb has a wide flood beam of around 100 degrees, spreading light broadly across a room rather than focusing it tightly on one spot. That makes it a good general-purpose choice for kitchens, hallways, and living spaces rather than narrow display or accent lighting.

Will this JCB LED GU10 fit my existing GU10 downlight fitting?

Yes. GU10 is a standard twist-and-lock fitting used across UK downlights, so this bulb will fit any GU10 socket without needing to change the fitting itself or add a transformer.

Technical specification

More GU10 bulbs

Compare with the Eveready LED GU10 Bulb, 5W, 370 Lumen Daylight 6500K or the Eveready LED GU10 Bulb, 3W, 250 Lumen Warm White 3000K, or see the full range in our GU10 bulb collection.