B22 (BC) LED Golf Bulb 5W 550lm Dimmable - Warm White 2700K

This is a golf ball LED bulb with a B22 bayonet cap, the push and twist fitting found on most UK ceiling roses, table lamps and wall lights. It draws 5W and gives 550lm, which the retail pack rates as a replacement for a 40W incandescent lamp. The light is 2700K warm white, the soft yellow-toned light most people want in a living room or bedroom rather than the brighter white usually chosen for a kitchen. Clear glass leaves the LED filaments on show, so the bulb reads as a traditional lamp rather than a capped plastic one.

A golf ball lamp is the small round bulb, narrower in the body than a standard GLS, and that smaller shape is why it suits fittings where a full-size bulb looks heavy or simply will not fit: compact pendants, bedside lamps, small drum and coolie shades, and multi-arm fittings taking bayonet caps. At 550lm it sits on the brighter side for its size, so one in a bedside lamp gives usable reading light, and several across a multi-arm pendant will cover a dining table comfortably. Because the glass is clear, it looks best where the bulb itself is seen, under an open shade or inside a glass fitting.

It is dimmable, and that is worth checking against the dimmer you already own: LED lamps draw a fraction of the power the filament lamps most older dimmers were built for, so a switch with a high minimum load can hum or flicker with a single 5W bulb on the circuit. A trailing edge dimmer rated for LED loads is the safer pairing. The energy rating is E, and the pack prints a 15 year lifespan, or 15,000 hours. Each box holds one bulb, with a minimum order of 12, sold in multiples of 12. It sits alongside our wider range of LED bulbs, including candle and golf shapes in B15 (SBC) and GU10 fittings.

Will this fit my existing lamp holder?

It takes a B22 bayonet holder. Pull the old bulb out and look at the cap: two small pins on a smooth metal base means bayonet, while a spiral thread means you need a screw cap bulb instead.

How bright is 550 lumens in a room?

The pack rates it as a 40W incandescent replacement, so it is comfortable as a bedside or table lamp bulb, and several together in a multi-arm pendant will light a dining table.

Can I use it on the dimmer I already have?

It is dimmable, but LED lamps draw very little power, so an older dimmer with a high minimum load may buzz or flicker. A trailing edge dimmer rated for LED loads gives the smoothest result.

What does 2700K warm white actually look like?

It is the soft, slightly yellow light of the old filament lamps, warmer than the neutral white often used in kitchens, and it flatters wood, brick and warm paint colours.

Is an IP rating printed for this bulb?

The manufacturer does not state an IP rating, so treat it as an ordinary indoor bulb for dry rooms and use it in fittings intended for general household lighting.

How many bulbs do I receive?

Each box contains one bulb. The minimum order on this listing is 12 boxes, sold in multiples of 12, so you receive 12 individual bulbs at the lowest order quantity.