JCB LED GU10 Bulb, 5W (50W), 345 Lumen, Warm White 3000K, Pack of 4

This JCB GU10 LED bulb is a 5W (50W halogen replacement) spotlight bulb giving out 345 lumens of warm white 3000K light, supplied as a pack of 4. It uses the same twist-and-lock GU10 base as the halogen spotlight it replaces, so it drops straight into your existing downlights and fittings with no rewiring needed.

Key features

• 5W LED, uses a fraction of the electricity of a 50W halogen GU10 for a similar amount of light
• 345 lumen output, 3000K warm white colour temperature
• Non-dimmable — for use with standard on/off GU10 fittings and switches
• Standard GU10 twist-and-lock base, fits directly into existing GU10 downlights
• Runs on standard UK mains voltage, 220-240V, no transformer needed
• Supplied as a pack of 4 bulbs

What this bulb is best for

The 3000K warm white colour temperature suits living rooms, bedrooms, hallways and kitchens where a cosy, traditional light is wanted rather than a bright white or blue-white light. At 345 lumens it's a good match for downlights that previously took a 50W halogen GU10, giving a similar brightness for a lower running cost.

How to fit it

1. Turn off the power to the fitting at the switch or consumer unit before changing any bulb
2. If replacing an old bulb, let it cool fully before touching it
3. Twist the old GU10 bulb anti-clockwise a quarter turn and pull it out of the fitting
4. Push the new JCB GU10 bulb into the fitting and twist it clockwise a quarter turn until it locks in place
5. Restore power and test the light. No transformer or driver is needed — GU10 bulbs, LED or halogen, run directly on mains voltage

Frequently asked questions

Is this JCB GU10 bulb dimmable?

No. This is a non-dimmable bulb, so it should only be used with standard on/off switches. Fitting it to a dimmer switch can cause flickering or early failure.

What halogen wattage does this 5W bulb replace?

JCB rates this bulb as a 50W halogen GU10 replacement, giving a similar level of brightness (345 lumens) for a much lower running wattage.

Will all 4 bulbs in the pack match in brightness and colour?

Yes, all 4 bulbs in this pack are the same 5W, 345 lumen, 3000K warm white specification, so they'll look consistent when used together, for example across a run of downlights.

Can I use this bulb outdoors or in a bathroom?

That depends on the IP rating of the light fitting it's going into, not the bulb itself. Only fit GU10 bulbs into fittings rated for outdoor or bathroom use in those locations — check your fitting's IP rating first.

Technical specification

More GU10 bulbs

• JCB LED GU10 Bulb, 3W, 235 Lumen, Warm White 3000K
• JCB LED GU10 Bulb, 5W, 370 Lumen, Daylight 6500K
• Sylvania Superia RefLED GU10 Bulb, Dimmable, 850 Lumen, Cool White
• Shop the full GU10 bulb collection