Energizer LED GU10 Bulb, 4.2W, 345 Lumen, Cool White 4000K

Energizer products are recognised as one of the most trusted and highly desirable consumer lighting brands. This GU10 LED bulb (model S8825) gives 345 lumens of clean 4000K cool 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 crisp 4000K cool white 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 focused 36° beam and bright cool white colour make this Energizer GU10 well suited to kitchen worktops, bathroom mirror lighting (fitting permitting) and task areas where you want clear, accurate light on a specific spot rather than a broad wash of light.

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 S8825 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. Energizer also make a dimmable 4.6W cool white version if you need one.

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.

What beam angle does this bulb have?
36°, a fairly narrow, focused spread of light, good for highlighting specific areas rather than lighting a whole room evenly.

Is 4000K cool white or warm white?
4000K is a cool, bright white light, closer to daylight than the yellower glow of a 3000K warm white bulb. Energizer also offer this bulb in 3000K warm white if you prefer a cosier tone.

Technical specification

More GU10 bulbs

• Energizer LED GU10 Bulb, 4.2W, 345 Lumen, Warm White 3000K
• Energizer LED GU10 Bulb, Dimmable, 4.6W, 375 Lumen, Cool White 4000K
• Eveready LED GU10 Bulb, 5W, 370 Lumen, Cool White 4000K
• Shop the full GU10 Bulb collection