E27 (ES) LED Bulb 24.9W 3452lm Non-Dimmable - Warm White 2700K

This is a screw fit E27 LED lamp in the classic GLS shape, drawing 24.9W and giving 3452 lumens of 2700K warm white light. The pack rates it as a 200W replacement, which puts it above the output of a typical household bulb and into the territory once held by large filament lamps. The energy rating is D, and it is non-dimmable. Each box holds one bulb.

E27, also written as ES or Edison Screw, is the larger of the two common screw caps used in the UK; the smaller is E14. If the old bulb turns into its holder on a coarse thread roughly 27mm across, this is the right cap. Output at this level suits a place where one lamp does all the work: a hallway with a high ceiling, a landing, a garage, a workshop or a big pendant over a dining table. At 2700K the light stays soft and yellow rather than clinical, so the room still reads as warm at this brightness. No overall length or diameter is published, so measure first if the shade is shallow or the fitting fully enclosed.

There is no dimming, so keep it off a dimmer circuit or a wall switch with a dimmer built in; a non-dimmable LED on a dimmer tends to flicker or buzz and can fail early. On a plain on and off switch it simply runs. The pack prints a 15,000 hour lifespan and a 15 year figure, so in a hallway lit a few hours a night it should go years between changes. One unit is one bulb, and the minimum order is 12, sold in multiples of 12, which suits relamping a whole building at once. It sits beside our wider range of LED bulbs in GU10, B15 candle and golf, and 2G11 PLL types.

Will this fit my existing lampholder?

It takes an E27 holder, the larger screw cap also called ES or Edison Screw. Check the old bulb screws in rather than pushing and twisting, and that the thread measures about 27mm across.

How bright is 3452 lumens in real terms?

It is roughly the output of an old 200W filament bulb, so it is a lot of light from one lamp. It suits high ceilings, garages and big open rooms rather than a bedside light.

Can I put it on a dimmer switch?

No. The specification lists it as non-dimmable, so it needs a plain on and off switch. Fitted to a dimmer it will usually flicker or hum and may fail well before its rated hours.

What does 2700K warm white actually look like?

It is the soft yellow tone people associate with old filament bulbs, rather than the crisp blue white of daylight lamps. It flatters wood, warm paint colours and skin tones in living spaces.

Is an IP rating given for this lamp?

The manufacturer does not state one, so treat it as a lamp for ordinary indoor fittings that stay dry, and keep it away from anywhere it could be exposed to water or weather.

How many do I have to buy?

Each unit is a single boxed bulb, but the minimum order on this listing is 12 units, sold in multiples of 12, which works out well for relamping a whole property.