Energizer 4.2W Dimmable LED Candle Bulb E14 - Cool White 4000K

The Energizer 4.2W LED candle bulb delivers 470 lumens of 4000K cool white light through an E14 small Edison screw base, replacing traditional 40W incandescent candle bulbs. The candle profile suits compact fittings where the bulb is partially or fully visible, including chandeliers, wall sconces, bedside table lamps and decorative pendant lights with open or glass shades.

The bulb is dimmable, allowing brightness to be adjusted from full output down to lower levels depending on the time of day or task. Dimmer compatibility depends on the specific dimmer model in use — most leading-edge and trailing-edge LED dimmers support this bulb, but older resistive dimmers designed for incandescent bulbs may cause flicker or limited dimming range. The 4000K colour temperature sits between warm white (2700K-3000K) and daylight (5000K+), producing a neutral white tone that renders colours accurately without the yellow cast of warmer bulbs.

At 4.2W, the bulb draws approximately one-tenth the power of the 40W incandescent it replaces, cutting running costs and heat output while maintaining comparable brightness. The rated lifespan is 15,000 hours, equating to roughly 15 years of typical domestic use at three hours per day. The E14 base is the smaller of the two common Edison screw fittings in the UK (the larger being E27), typically found in fittings where space around the lamp holder is limited or where a smaller bulb profile is aesthetically required.

Is this bulb compatible with dimmer switches?

Yes, the bulb is dimmable. Compatibility depends on the dimmer model — most modern LED-compatible dimmers (leading-edge or trailing-edge types) work well with this bulb. Older resistive dimmers designed for incandescent bulbs may cause flicker or restricted dimming range.

What is the difference between 4000K and warm white bulbs?

4000K produces a neutral cool white light that appears whiter and bluer than the yellowish tone of warm white bulbs (2700K-3000K). Cool white is often preferred in bathrooms, kitchens and task lighting where colour accuracy matters, while warm white suits living rooms and bedrooms where a cosier tone is desired.

How long does the bulb last?

The rated lifespan is 15,000 hours. At typical domestic use of three hours per day, this equates to approximately 15 years before the bulb reaches end of life or significant lumen depreciation.

What fittings use E14 bulbs?

E14 is the small Edison screw base, commonly found in chandeliers, wall sconces, compact table lamps, bedside lights and decorative pendant fittings where space around the lamp holder is limited or a smaller bulb profile is required.