Energizer 3.6W GU10 Dimmable LED Bulb - Daylight 6500K

The Energizer 3.6W GU10 is a dimmable LED spotlight bulb delivering 345 lumens at 6500K daylight colour temperature. The GU10 twist-and-lock base fits standard UK recessed downlight and track light housings, replacing 50W halogen equivalents with 3.6W LED consumption. The 6500K daylight output produces a crisp, cool white light that renders colours accurately in task-oriented settings.

Designed for kitchens, home offices, workshops and retail display lighting where clarity and colour accuracy matter, the 6500K temperature sits at the cooler end of the spectrum and creates a bright, alert atmosphere compared to warm white alternatives. The narrow 36-degree beam angle concentrates light into a focused cone rather than a wide wash, making it effective for highlighting worktops, task areas and product displays. Dimmer compatibility allows brightness adjustment from full 345 lumens down to lower ambient levels depending on the time of day or specific task requirements.

The bulb carries an E energy rating under the revised 2021 EU energy label system and is rated for a 15-year lifespan at typical domestic usage patterns of 2.7 hours per day. This translates to approximately 15,000 hours of operation before degradation, reducing replacement frequency compared to halogen bulbs which typically last 2,000-3,000 hours. The LED construction produces minimal heat output compared to the halogen equivalent, reducing cooling load in recessed ceiling fittings and enclosed housings.

What does 6500K daylight look like compared to warm white?

6500K produces a crisp, cool white light with a slight blue cast, similar to midday sunlight on an overcast day. It renders colours more accurately than warm white (2700K-3000K) and creates an alert, clinical atmosphere. Warm white by contrast produces a yellow-toned glow better suited to living rooms and bedrooms.

Is this compatible with all dimmer switches?

The bulb is rated as dimmable, but compatibility depends on the specific dimmer model installed. LED bulbs work best with trailing-edge LED-compatible dimmers. Older leading-edge dimmers designed for halogen bulbs may cause flickering or limited dimming range. Check your dimmer specification or test before installing multiple bulbs.

What's the beam angle?

GU10 spotlight bulbs typically produce a narrow beam angle between 36-38 degrees, concentrating light into a focused cone rather than a wide flood. This makes them effective for task lighting and accent lighting but less suitable where broad ambient coverage is needed.

How does 345 lumens compare to the halogen it replaces?

This 3.6W LED is marketed as a 50W halogen replacement. A 50W GU10 halogen typically produces 400-450 lumens, so the 345-lumen output is slightly lower but still provides comparable task lighting performance while using 93% less energy.