Energizer 4.9W GU10 LED Bulb 6500K Daylight Non-Dimmable (4 Pack)

The Energizer 4.9W GU10 LED bulb delivers 345 lumens at a daylight 6500K colour temperature through a 38° beam angle, designed as a direct replacement for 50W halogen GU10 spotlights. The non-dimmable LED chip produces a crisp, cool-toned light that replicates midday natural light, making the bulb suited to task lighting where clarity and visibility matter.

Designed for kitchens, bathrooms, home offices and workshops where strong directional light is required, the GU10 base fits standard twist-and-lock spotlight and downlight fittings across UK residential and commercial installations. The 38° beam concentrates light onto work surfaces, kitchen counters and desks without spreading into ambient wash. Four bulbs in the pack allow for even lighting across a row of downlights or multiple spotlight fittings in the same room.

Each bulb measures 50mm diameter by 54mm depth and weighs 100g, matching the physical footprint of the halogen GU10s it replaces so existing fittings and trims require no modification. The 6500K colour temperature sits at the cool end of the spectrum, producing a blue-toned white that increases contrast and sharpness compared to warmer 2700-3000K alternatives. The Energy Rating F reflects the balance between output and consumption at this wattage level under current UK energy labelling standards.

Can these bulbs be used with a dimmer switch?

No. These are non-dimmable bulbs and will not function correctly with dimmer switches. Installing them on a dimmed circuit may cause flickering, buzzing or premature failure. Use only with standard on/off switching.

What's the difference between 6500K and 3000K bulbs?

6500K produces a cool, blue-toned daylight white that increases contrast and clarity, suited to task lighting in kitchens, bathrooms and workshops. 3000K produces a warm, yellow-toned white closer to incandescent bulbs, better for living rooms and bedrooms where softer ambient light is preferred.

How many bulbs come in the pack?

Four bulbs per pack. This quantity suits a typical row of kitchen downlights or bathroom spotlights where multiple fittings need to be replaced at once to maintain consistent colour temperature across the room.

Will these fit my existing GU10 spotlight fittings?

Yes. The GU10 base is a standard UK twist-and-lock fitting used in mains-voltage spotlights and downlights. The 50mm diameter and 54mm depth match typical halogen GU10 dimensions, so these bulbs will fit the same fittings and trims without modification.