Lumi

The Lumi replaces a traditional 40W halogen G9 capsule bulb while consuming just 4.2W of power. It produces 470 lumens, delivering the same brightness you'd expect from a 40W halogen but with significant energy savings and a much longer lifespan.

This bulb is fully dimmable but requires a trailing-edge dimmer to function properly. If you currently have an older leading-edge or rotary dimmer designed for halogen bulbs, you'll likely need to replace it with a trailing-edge model to avoid flickering or buzzing. Most modern LED-compatible dimmers sold in the UK are trailing-edge.

No, this bulb is rated IP20, which means it's not splash-proof and is only suitable for dry indoor locations. For bathroom use—especially in zones 1 or 2 near showers or baths—you'll need a bulb with a minimum IP44 rating or higher to meet UK Building Regulations.

This bulb emits a warm white light at 2700K, producing a soft, inviting amber glow similar to traditional incandescent or halogen bulbs. It's ideal for living rooms, bedrooms, and dining areas where you want a cosy, relaxed atmosphere rather than the cooler, clinical light of daylight bulbs.

No, replacing a G9 bulb is a simple like-for-like swap that doesn't require an electrician or notifiable work under Part P. Just switch off the light, allow the old bulb to cool if it's been on, then gently pull it straight out from the push-fit socket and push the new Lumi bulb firmly into place until it clicks.

While exact dimensions aren't listed in the specifications, standard G9 LED capsules are typically around 50–55mm in length and 15–16mm in diameter. If your fitting has a tight shade or cover, it's worth checking the old bulb's size first, as some older halogen G9s can be slightly shorter than LED replacements.