B22 Bulb

Lumination's B22 LED bulb range covers 4 W to 12 W outputs covering 400 to 1,100 lumens in dimmable and non-dimmable formats. Every bulb is listed with lumen output, colour temperature, beam angle and dimmability. Brands include Lampfix and Magnalux, both specialist UK lighting component suppliers.

B22 LED Bulbs: Specifications and Applications

B22 is a bayonet cap, the standard fitting used in many traditional UK pendant lights, ceiling lights and table lamps; also known as BC (bayonet cap). The most common applications are traditional UK pendant lights, ceiling fittings with BC lamp holders, table lamps and floor lamps. When selecting a B22 LED replacement, confirm the lumen output required for the fitting and whether dimmability is needed. Lampfix supplies B22 LED bulbs in GLS, globe and candle shapes at 2,700 K and 3,000 K. Magnalux covers higher-output B22 options for ceiling fittings.

Lumination stocks Lampfix and Magnalux LED bulbs across all cap types. Both brands are specialist UK lighting component suppliers chosen by Lumination's buying team for reliable lumen output, consistent colour temperature and confirmed dimmability on the appropriate variants.

Choosing the Right B22 LED Bulb

The key specifications to confirm when choosing a B22 LED bulb are: lumen output (the brightness, replacing the wattage guide of older incandescent bulbs), colour temperature (2,700 K for warm white, 3,000 K for warm-neutral, 4,000 K for neutral white), beam angle (where relevant for directional bulbs), and whether the bulb is dimmable. Dimmable B22 LED bulbs are available in GLS and globe forms from Lampfix. The B22 cap type is used less often in new fittings than E27, but is standard in many existing UK ceiling lights and table lamps.

LED Bulb Energy Savings Versus Halogen

LED B22 bulbs consume 80 to 90 percent less energy than equivalent halogen or incandescent bulbs for the same lumen output. A fitting previously using a 50 W halogen can run an LED equivalent at 5 to 7 W for the same light output. At the UK average electricity rate, a single fitting running 6 hours per day saves approximately £6 to £8 per year per lamp position. For a kitchen with 8 GU10 downlights or a chandelier with 10 E14 lamps, the annual saving across all positions is significant. Lumination lists wattage and lumen output for all LED bulbs so you can calculate the saving for your specific installation.

Frequently Asked Questions

A B22 bulb uses a bayonet cap fitting, where two small pins on the sides of the base lock into a corresponding socket with a push-and-twist action. This is distinct from the E27 (Edison screw), which screws into a threaded socket. The B22 bayonet cap is the traditional UK domestic lamp fitting and is used in millions of existing ceiling lights, pendant lights and table lamps throughout the UK. New fittings increasingly use E27 as the international standard, but B22 remains common in UK-designed and period-style fittings. The two cap types are not interchangeable without an adapter. Lampfix and Magnalux both supply B22 LED bulbs in the same range of shapes and outputs as E27, ensuring full replacement coverage. Lumination stocks both cap types across the full LED bulb range. Free delivery applies to all orders over £75.

An 8 W to 10 W B22 LED bulb replaces a 60 W incandescent B22 for equivalent lumen output. A 60 W incandescent B22 produces approximately 800 lumens. A quality 8 W LED B22 from Lampfix delivers 800 lumens, the precise replacement output. For a 40 W incandescent equivalent (approximately 450 lumens), a 5 W to 6 W B22 LED is correct. For 100 W incandescent equivalent (1,100 lumens), a 12 to 13 W B22 LED is needed. The lumen output figure (not the wattage) is the correct comparison metric when replacing incandescent B22 bulbs with LED. Lumination lists lumen output for all B22 LED bulbs from Lampfix and Magnalux, and with 1,797 or more Google reviews at 4.8 stars customers rely on these specifications for accurate replacement planning. Lumination has been supplying B22 LED replacements from specialist component suppliers for many years.

Yes. Dimmable B22 LED bulbs are available from Lampfix in GLS and globe shapes. For B22 LED bulbs to dim correctly, both the bulb must be marked as dimmable and the dimmer switch must be a trailing-edge (electronic or capacitive) LED-compatible type. Standard leading-edge (resistive) dimmer switches designed for incandescent and halogen loads will cause flickering and poor dimming performance with LED bulbs. The minimum load of the trailing-edge dimmer must also be checked against the total wattage of all LED bulbs on the circuit. Lumination's team can advise on compatible trailing-edge dimmer switches for specific B22 LED circuits. Magnalux supplies LED-compatible trailing-edge dimmers through Lumination alongside the dimmable B22 bulb range from Lampfix.

For a ceiling pendant with an enclosed or semi-enclosed shade where the bulb is not visible, a standard frosted GLS A60 shape in B22 delivers the best light output through the shade material. The GLS (general light source) A60 profile distributes light in all directions equally, which suits pendants with translucent shades where even light distribution through the shade fabric is wanted. For a ceiling pendant with an open bottom shade or a bare-bulb cage pendant where the bulb is visible, a clear globe (G95 or G80) or a vintage filament GLS in B22 at 2,200 K to 2,700 K gives a more attractive visual appearance. Lampfix supplies B22 LED bulbs in both standard frosted GLS and clear filament globe formats. Lumination lists the bulb shape and glass type on every B22 LED product page.

Lumination stocks B22 LED bulbs from Lampfix and Magnalux. Lampfix supplies B22 LEDs in GLS (A60), globe and vintage filament shapes across 5 W to 12 W outputs and 2,700 K and 3,000 K colour temperatures, in dimmable and non-dimmable formats. Magnalux covers higher-output B22 LED options for ceiling fittings requiring 1,000 to 1,200 lumens per position and covers dimmable B22 LEDs for use with trailing-edge dimmer circuits. Both brands are selected by Lumination's buying team for confirmed lumen output accuracy, consistent colour temperature and reliable dimmability. Lumination has been stocking B22 LED bulbs from specialist component suppliers for many years and the team at the Taunton and Wellington showrooms can confirm the correct B22 LED specification for any pendant or ceiling light application.