Energizer 4.2W G9 LED Capsule Bulb - Daylight 6500K Non-Dimmable

The Energizer 4.2W G9 LED capsule bulb is a direct replacement for 40W halogen G9 bulbs, delivering 470 lumens at 6500K daylight colour temperature while consuming 90% less energy. The G9 twin-pin base fits standard UK capsule fittings found in wall lights, under-cabinet lighting, chandeliers and bathroom mirror lights without modification.

Designed for task-focused environments where crisp visibility matters, the 6500K output produces a cool, neutral white light that renders colours accurately and reduces eye strain during detailed work. This makes it suitable for kitchen worktop lighting, bathroom vanity mirrors, office desk lamps and workbench installations where clear illumination is needed for reading, food preparation or precision tasks. The 300-degree beam angle provides wide light distribution from a compact 15mm x 50mm capsule body.

The LED array inside the clear capsule casing is rated for up to 15,000 hours at typical residential usage patterns, equivalent to approximately 15 years when used 3 hours per day. This extended lifespan reduces the frequency of bulb replacement in hard-to-reach fittings such as recessed downlights or high wall-mounted fixtures. The bulb is non-dimmable and operates on 230V AC mains without requiring a transformer or driver box.

The Energizer G9 carries an E energy rating under the updated EU energy labelling scale introduced in 2021, reflecting its efficiency relative to other LED products in the same category. The clear capsule casing allows the LED filament array to be visible when lit, giving a contemporary appearance in exposed-bulb fittings.

Is this bulb dimmable?

No. This Energizer G9 LED is non-dimmable and must be used on standard on/off switches only. Pairing it with a dimmer switch may cause flickering, buzzing or premature failure.

What's the difference between 6500K and warm white bulbs?

6500K produces a cool, daylight white light that resembles natural midday sunlight and is best suited to task lighting in kitchens, bathrooms and workspaces. For living rooms, bedrooms and ambient lighting, a warm white bulb (2700K-3000K) typically provides a more comfortable atmosphere.

Will this fit my existing G9 halogen fixture?

Yes. The G9 twin-pin base is a standard fitting and this LED capsule is a direct replacement for 40W halogen G9 bulbs. The capsule dimensions (approximately 15mm diameter x 50mm length) are compatible with most G9 fittings, though it's worth checking clearance in very compact enclosed fixtures.

How long does the bulb last?

Energizer rates this bulb at 15,000 hours, which translates to approximately 15 years when used 3 hours per day. Actual lifespan depends on usage patterns, ambient temperature and switching frequency.