E27 GLS 13.6W LED Bulb 100W-eq 1521lm 220° Dimmable - Cool White

This E27 GLS LED bulb takes the classic rounded A60 household shape, so it drops straight into pendants, table lamps and ceiling fittings that previously held a standard incandescent. It draws just 13.6 W yet gives out 1521 lumens, the kind of output you would once have needed a 100 W old bulb for. The light is 4000K cool white, a crisp neutral tone that keeps colours looking true, and the 220° beam angle spreads it widely rather than firing it in one direction. American readers will know the cap as an E26 medium Edison Screw equivalent and the shape as an A19, though this is the E27 (ES) screw fitting used across the UK.

Because the spread is broad and the tone neutral, the bulb works well in living spaces, kitchens, hallways and home offices where you want clear, even light over a whole room rather than a tight pool. The 1521 lumen output gives plenty of working brightness for a single central fitting in an average room, and several can be grouped in a multi-arm pendant or spotlight bar without the light feeling harsh. It is rated IP20 for dry indoor use only, so keep it to interior fittings and away from bathrooms, porches and any damp or outdoor location.

The bulb measures Ø60 by 120 mm and weighs 70 g, with a white opal finish that hides the diodes for a softer, glare-free look. It is fully dimmable, so it can be paired with a compatible LED dimmer to set the level you want, and it carries a 25,000 hour rated lifespan with an efficiency of 112 lm/W and Ra 80 colour rendering. The E27 cap twists into any standard screw lampholder with no extra parts needed.

Product Specification Sheet

Range Datasheet

What fitting does this bulb need?

It has an E27 Edison Screw (ES) cap, the standard large screw fitting used across the UK. It twists straight into any E27 lampholder with no adaptor or extra parts. In the US this corresponds to the E26 medium screw base.

What old bulb wattage does it replace?

It draws only 13.6 W but puts out 1521 lumens, which matches the brightness of a 100 W old incandescent bulb. The LED itself uses just 13.6 W, so it cuts running costs sharply while giving the same light. The equivalence is about light output, not power drawn.

Is this bulb dimmable?

Yes, it is fully dimmable. Pair it with a dimmer switch rated for LED loads to adjust the brightness smoothly. Using a compatible LED dimmer gives the best results and avoids flicker.

Is cool white the right tone for my room?

At 4000K this is a cool white, a crisp neutral light that sits between warm and daylight tones and keeps colours looking accurate. It suits kitchens, hallways and work areas where clear, alert light is useful. With Ra 80 colour rendering it shows surfaces and finishes faithfully.