GX53 Bulb 9W 4000K 75mm - White

This is a flat, disc-shaped LED lamp on the twist-and-lock GX53 base, the format used where a fitting is too shallow to swallow a conventional spot. The face is a frosted white diffuser set into a white body, and the light output at 9W is a clean 4000K cool white that reads bright and neutral rather than creamy. The spread is wide rather than a tight cone, so it washes a shelf or a worktop fairly evenly instead of dropping a hard pool. It is a non-dimmable lamp, so we would put it on a plain on/off switch and leave the trailing edge dimmers for other jobs.

We reach for the GX53 shape in kitchen plinths, cabinet and wardrobe interiors, and slim ceiling fittings in low rooms, corridors and cupboards. It also suits anyone still running older compact fluorescent GX53 lamps and wanting the same twist-in base with a quicker start and less heat. The cooler colour tone earns its place over sinks, in utility rooms, workshops and garages, and anywhere the job is seeing clearly rather than settling in for the evening. Keep it to dry rooms indoors, away from splashes and steam.

The body measures 75mm across the face, with the diffuser sitting flush in a white housing and the two pins set on the underside for the quarter turn into the holder. It is a light, self-contained lamp with no separate driver to house. For cleaning, wait until it is cold, then wipe the diffuser with a dry cloth and grip the housing rather than the face when you twist it out. It carries a two year warranty. The same lamp is offered in a warmer 3000K version at this wattage, and the range runs up to a brighter GX53 output, including dimmable options if you want the level under control. The LED is built in, so there is nothing to swap inside it.

How much light does it give out?

Around 740 lumens, spread over a wide 120 degree beam, which suits general washes of light rather than tight accenting.

Will it fit my existing GX53 holder?

Yes. It uses the standard GX53 two-pin twist-and-lock base and measures 75mm in diameter by 24mm deep, matching the usual GX53 lamp envelope.

Can I dim it?

No. This version is non-dimmable and should be run on a standard switched circuit. There are dimmable GX53 lamps in the same range if you need the level adjustable.

What does 4000K look like next to a warm white lamp?

It is a cool, neutral white with no yellow cast, noticeably crisper than a 3000K warm white. Mixing the two in one room is best avoided.

How long should it last?

It is rated at an average life of 20,000 hours, with a colour rendering figure above 80.

How do I clean the face?

Switch off and let it cool, then use a dry cloth on the frosted diffuser. Avoid sprays and solvents, and hold the outer housing when removing it.