E27 (ES) LED GLS Bulb 13.8W 1521lm - Daylight 6500K, 6 Pack

A daylight LED bulb in the familiar GLS shape, with the E27 screw cap that most UK pendants and standard lamps take. It draws 13.8W and gives 1521 lumens, and the pack rates that against a 100W incandescent, so it is meant as a swap for the brightest of the old household bulbs rather than a soft background light. GLS is the traditional pear outline, and the white diffusing body spreads light all round rather than throwing a beam forward, which is what you want behind a fabric shade. One order brings six bulbs, five plus a sixth included with them.

At 6,500K this is the coolest light on the domestic scale, a crisp blue white with no yellow in it. That suits rooms where seeing clearly matters more than atmosphere: kitchens, utility rooms, garages, workshops, home offices and craft corners, along with stairs and landings that benefit from a flatter, brighter light. Next to warm white lamps in a sitting room it will read as clinical, and mixing the two in one room rarely looks right. Our wider range of LED bulbs runs from warm white through cool white to daylight in candle, golf and GLS shapes, so you can hold one colour temperature across a room.

Check the cap on the bulb you are replacing before you order: E27 is the larger screw thread at 27mm across and is sometimes marked ES, while the smaller E14 or SES cap will not thread in. Any holder that once took a 100W filament bulb has ample headroom for 13.8W. The pack prints a rated life of 10 years, or 10,000 hours. No dimming information is printed, so plan on a plain on and off circuit. The minimum order is one pack, and six bulbs is usually enough to do a landing, a kitchen and keep a spare.

Which light fittings does an E27 cap fit?

E27, also marked ES, is the larger of the two screw caps used in the UK, 27mm across the thread. It suits most pendants, standard lamps and many ceiling fittings, while the smaller E14 or SES cap will not fit.

How bright is 1521 lumens in a real room?

The pack rates it against a 100W incandescent bulb, which puts it at the top of the household range. It is bright enough to light a kitchen or a garage from one central fitting.

What does 6,500K daylight actually look like?

A crisp blue white with no warmth in it, close to overcast daylight. It reads as clean and businesslike, which helps when cooking or working, but it can feel stark in a bedroom.

Can this bulb be dimmed?

No dimming information is printed for this lamp and the specification does not cover it, so we would treat it as a plain on and off bulb rather than risk flicker on a dimmer.

How many bulbs do I receive?

Six, sold as five plus one extra in a single retail pack. The minimum order is one pack, so all six bulbs arrive together in one purchase.

How long should each bulb last?

The pack prints a rated life of 10 years, or 10,000 hours. In practice, how often the light is switched and how enclosed the fitting is will both affect that figure.