Energizer LED Candle Bulb B22 4.2W Opal Non-Dimmable - Daylight 6500K

A 4.2W LED candle bulb on a B22 bayonet cap, the push and twist fitting with two side pins that most older British light fittings take. It gives 470 lumens, which the retail pack rates as a match for a 40W incandescent candle bulb. The light is 6500K daylight, the coolest and bluest of the white tones, and the white bulb body spreads it over a wide 240 degree beam rather than throwing it forward in one direction.

Candle bulbs earn their shape in fittings where the lamp shows: chandeliers, wall lights, small pendants and shaded table lamps taking the standard bayonet cap. At 6500K this one is a working light rather than a relaxing one. It suits a kitchen, a utility room, a garage, a workshop or a hallway where seeing clearly matters, and it keeps colours honest, which helps when matching paint or fabric and when reading small print. For a sitting room or bedroom, pick a warm white version instead; 6500K and 2700K in the same room read as an obvious mismatch.

It is not dimmable, so keep it on a plain on/off switch; a non-dimmable lamp on a dimmer circuit tends to flicker, buzz or fail early. The pack prints a 15,000 hour lifespan and a 15 year figure, and the energy rating is E. It is rated IP20, which is protection against fingers but none against water, so it is for indoor use. Each box holds a single bulb and the minimum order is 12, sold in multiples of 12, which suits kitting out a whole house or keeping spares on a shelf. It sits alongside our wider range of LED bulbs, including B15 (SBC) candle bulbs in warm white 2700K and cool white 4000K.

Will this fit my existing bayonet light fitting?

It has a B22 bayonet cap, the larger British bayonet with two side pins that you push in and twist a quarter turn. Check the old bulb has that same two pin cap rather than the smaller B15 or a screw thread.

How bright is 470 lumens in practice?

The pack rates 470 lumens as a replacement for a 40W incandescent candle bulb, so it works well in a multi arm chandelier or a pair of wall lights rather than as the only light in a large room.

Can I put it on a dimmer switch?

No. It is non-dimmable and needs a plain on/off switch. On a dimmer circuit you are likely to get flicker, an audible buzz or a much shorter life from the lamp.

What does 6500K daylight look like in a room?

It is a crisp, slightly blue white, far cooler than the yellow of an old filament bulb. It keeps colours looking true, which suits kitchens, utility rooms, workshops and hallways more than bedrooms.

How long is it meant to last?

The retail pack prints a 15,000 hour lifespan and a 15 year figure. At around three hours of use a day, 15,000 hours works out at roughly thirteen and a half years.

Can I use it outdoors?

No. It is rated IP20, which gives protection against fingers reaching live parts but none at all against water, so it should only go in indoor fittings.