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ES & SES Bulbs

Replace screw-cap bulbs across the home with ES and SES LED bulbs from Energizer. ES is the larger E27 fitting and SES the smaller E14, here in GLS, candle and golf ball shapes. Choose warm white at 2700K through to daylight at 6500K, with dimmable and non-dimmable options and filament styling in clear or gold glass. Most replace 40 to 100 watt bulbs.

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Two screw caps, one home

Screw-cap bulbs come in two sizes, and knowing which you need saves a wasted trip to the shop. ES is the larger E27 fitting found in many pendants, lamps and overhead fittings, while SES is the smaller E14 used in candle fittings, wall lights and compact shades. Both screw in by hand, so swapping a tired old bulb for an LED version is quick work once you have matched the cap to the holder it sits in.

Shapes for each fitting

Shape matters as much as the cap. GLS is the familiar rounded bulb that sits well in open fittings and reading lamps, the candle shape suits chandeliers and wall lights where the tapered tip is on show, and the golf ball is a smaller round option for tighter shades and pendants. Pick the outline that fills the fitting properly without crowding it or poking out beyond the shade.

Warm white to daylight

Colour temperature sets the whole mood of a room. Warm white at 2700K gives a soft, relaxing glow that suits living rooms and bedrooms, while daylight at 6500K is crisper and cooler, better for kitchens, studies and task areas where you want to see clearly. The range runs across this span, so you can match the light to how each space is actually used rather than settling for one tone throughout the house.

Dimmable and filament options

Some bulbs in the range are dimmable and others are not, so check the option before pairing one with a dimmer switch to avoid flicker. Filament styling adds visible bars of light inside the clear glass, which works well in fittings where the bulb itself is meant to be seen rather than hidden away behind a shade.

Matching the old wattage

LED versions draw far less power than older bulbs while giving comparable light, so they cost less to run. These LED versions give comparable light to the older bulbs they replace, which means you can step down to LED without the room feeling any darker than before. Free UK delivery over £99, worldwide shipping.

Frequently Asked Questions

What is the difference between ES and SES?
ES is the larger screw fitting, also known as E27, and SES is the smaller screw fitting, E14. Check the size of the existing bulb base or your fitting before choosing, as the two are not interchangeable.

Which shapes can I choose?
This range covers GLS (the standard rounded shape), candle and golf ball bulbs. Candle and golf ball suit chandeliers and smaller shades, while GLS is the everyday choice for general room lighting.

Are dimmable versions available?
Yes. Both dimmable and non-dimmable bulbs are listed, with the product title stating which you are buying. Pair a dimmable bulb with a compatible dimmer, as a non-dimmable bulb can flicker or buzz on a dimmer circuit.

What brightness and colour should I pick?
Colour runs from warm white at 2700K to daylight at 6500K. For brightness, look at the wattage equivalent: these cover roughly 40 watt up to 100 watt replacements, so you can match the output of the old bulb.

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