Energizer LED GU10 Bulb, 4.2W, 345 Lumen, Warm White 3000K

Energizer products are recognised as one of the most trusted and highly desirable consumer lighting brands. This GU10 LED bulb (model S8823) gives 345 lumens of cosy 3000K warm white light from just 4.2W, a 50W halogen-equivalent output, through a focused 36° beam. Manufactured to the latest industry regulations, it's a reliable, energy-saving drop-in replacement for an old halogen GU10 spotlight.

Key features

• 4.2W LED consumption for a 50W halogen-equivalent light output
• 345 lumens of warm, inviting 3000K light
• 36° beam angle for focused, directional spotlighting
• Non-dimmable, for use with standard on/off switching
• Standard GU10 twist-and-lock base, no rewiring or transformer needed
• Backed by the Energizer brand, built to current lighting industry standards

What this bulb is best for

The 3000K warm white glow and focused 36° beam suit living rooms, bedrooms and dining areas where you want a cosy, halogen-like atmosphere rather than the brighter, whiter light used in kitchens and workspaces.

How to fit it

1. Turn off the power at the switch or consumer unit before you start.
2. Let the old bulb cool down fully if it's just been switched off.
3. Twist the old bulb anti-clockwise a quarter turn and pull it free of the GU10 fitting.
4. Push the new Energizer GU10 bulb into the fitting and twist it clockwise until it locks in place.
5. Restore the power and test the light. No transformer or separate driver is needed, the driver circuitry is built into the bulb.

Frequently asked questions

Is this Energizer GU10 bulb dimmable?
No, this S8823 model is non-dimmable. Fitting it to a dimmer switch can cause flickering, buzzing or premature failure, so keep it on a standard on/off circuit.

Why choose 3000K warm white over cool white?
3000K gives a yellower, softer glow close to traditional halogen lighting, which tends to feel cosier in living spaces, while 4000K cool white is brighter and whiter, often preferred in kitchens and utility areas.

How much can I save by switching from a 50W halogen to this bulb?
Since it draws only 4.2W for the same light output as a 50W halogen, you use roughly 90% less electricity to run it, while giving out a similar amount of light.

How long will this bulb last before I need to replace it?
It's rated for 15,000 hours, roughly 10 years or more at typical evening usage of around 4 hours a day.

Technical specification

More GU10 bulbs

• Energizer LED GU10 Bulb, 4.2W, 345 Lumen, Cool White 4000K
• Energizer LED GU10 Bulb, 3.1W, 230 Lumen, Warm White 3000K
• Eveready LED GU10 Bulb, 5W, 370 Lumen, Cool White 4000K
• Shop the full GU10 Bulb collection