Energizer GLS B22 13.5W Opal Non-Dimmable - Warm White 3000K, 4 Pack

This is the classic GLS bulb shape, the rounded pear outline that has been the standard household lamp for generations, with LED inside and a B22 bayonet cap at the base. It draws 13.5W and puts out 1,521 lumens, and the retail pack states it as a 100W replacement. The colour temperature is 3000K warm white, and the beam angle is a wide 240 degrees, so the light leaves almost the whole of the opal body instead of firing in one direction. The pack also prints a 15 year lifespan.

A B22 cap is the two pin push and twist fitting found on a great many British pendants and older table lamps. If the bulb you are taking out has two small lugs on the side of a smooth metal cap rather than a screw thread, this is the shape and cap you need. The wide spread suits a pendant with a shade in a living room, a hallway, a landing or a bedroom, where the job is to light the whole room rather than one surface. At 3000K the light reads warmer than daylight and a little crisper than a 2700K bulb, which makes it a comfortable choice for rooms used mostly in the evening.

There is no dimming on this one: both the specification and the pack mark it non-dimmable, so give it a plain on and off switch and save your dimmer circuits for a lamp rated to work with them. The energy rating is E, read from the product's own energy label. Each box holds four bulbs, and the listing has a minimum order of 16 boxes in multiples of 16, which suits stocking up for a whole property. It sits alongside our wider range of LED bulbs, which includes B15 (SBC) candle and golf lamps, GU10 spots and 2G11 PLL tubes.

Will this fit my existing bayonet light fitting?

Yes, if the fitting takes a B22 bayonet cap, the common British two pin cap that you push in and twist a quarter turn to lock. Screw fittings such as E27 will not take it.

Can I use it on a dimmer switch?

No. The specification and the pack both mark this bulb non-dimmable, so it needs a standard on and off switch rather than a dimmer circuit or a smart dimming module.

How bright is it compared with the old bulb I am replacing?

It gives 1,521 lumens, and the pack states it as a 100W replacement, so it is one of the brighter GLS bulbs and a good match for a main room light.

What does 3000K warm white actually look like?

It is a soft, slightly creamy white: warmer and gentler than daylight bulbs at 6500K, and a shade crisper and cleaner than the very yellow 2700K bulbs.

Does the light spread all round, or only downwards?

The beam angle is 240 degrees, so light comes off almost the whole opal body. That suits a pendant, a shade or a table lamp where you want an even spread.

How many bulbs do I get, and what is the minimum order?

One unit of this listing is a box of four bulbs. The minimum order is 16 boxes, in multiples of 16, which works out at 64 bulbs.