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Small Bayonet Light Bulbs

If you’re looking to get your hands on a small bayonet light bulb, you’ve come to the right place! At BLT Direct, we’re one of the leading suppliers of light bulbs and fittings, providing all of the solutions that you could need to brighten up your home. Our extensive range of SBC bulbs come in a variety of shapes, sizes and colours for you to pick from. Whether you’re replacing a current bulb, or looking for the perfect size for a new light fitting, we’ve got you covered.

When you’re looking for new or replacement light bulbs to install in your home, you’ll commonly find that you need a small bayonet-style bulb. These traditional push and twist’ models are used in many light fittings. A small bayonet light bulb, which is often also referred to as a B15 bulb, measures 15mm across, so it fits securely in many light fittings and comes in a range of different stylish designs to choose from. Small bayonet bulbs can come in candle, oval or globe shapes, a variety of glass finishes, and different colour temperatures to fit the mood you’re trying to achieve in your home.

Small bayonet candle bulbs can be used with a range of regular light fittings, they come in energy-efficient and long-lasting models that will instantly bring brightness to any room in your house. They are also installed using an extremely user-friendly ‘push and twist’ action so anyone can fit the bulb themselves at home.

Whatever bulb you choose for your home, you’ll be able to find the best prices and highest-quality products here at BLT Direct. We stock a wide range of small bayonet light bulbs in a variety of shapes and sizes. Whether you’re replacing an existing light bulb or fitting one in a new light fitting we can supply the correct lamp to solve your needs.

Brighten up your space with our range of bayonet light bulbs in every cap fitting style with our collection at BLT Direct.


What is a small bayonet light bulb?

A small bayonet light bulb, which is often called an SBC or B15 bulb, is a 15mm diameter bulb that is just as convenient as the popular 22mm bayonet style. They are most typically used in desk lamps or wall lights that require a smaller fitting.

Most domestic light fittings are designed to accommodate the ‘push and twist’ bulbs like a small bayonet, making them suitable in a range of settings.

What are small bayonet bulbs called?

There are a few different terms that people may use when referring to small bayonet bulbs. The most common is an SBC bulb, which is just the shortened version of the full name.

You may also hear them being referred to as B15 bulbs, which is the more technical term for the model.

Why choose a small bayonet bulb?

B15 light bulbs are a great choice for any lighting solution that requires a smaller light bulb. When you buy an LED bulb, you’ll benefit from low wattage and environmentally friendly home lighting that saves you money and provides excellent lighting to your home.

Most advanced B15 light bulbs now last around 10,000-20,000 hours more than older incandescent bulbs, which works out at almost a thousand days more of continued use in some cases.

These models are also readily available, come in a range of different shapes, colours and sizes, and can be easily installed at home yourself.

What is a B15 bayonet?

B15 bayonets are the same as a small bayonet LED bulb. They are used in table lamps, reading lights and desk lamps to provide focussed light to a workspace.

What are light bulbs with small bases called?

When talking about a light bulb with a small base, you’re probably talking about small bayonet lightbulbs. If so, you’re in the right place as we have a wide range of these bulbs for you to choose from.

Is a B15 bulb the same as SBC?

Yes, they are the same bulb, they’re both different terms for a small bayonet light bulb.

How to choose a small bayonet light bulb for your home?

When it comes to choosing the best small bayonet bulb for your light fitting, it will usually depend on your own personal style.

At BLT Direct, we stock a wide range of SBC bulbs in different shapes and sizes to suit any fitting you need to fill. From rounded and candle-shaped bulbs, we also offer a range of colour temperatures to suit the atmosphere of your home.

Small bayonet fittings are usually for smaller, lower wattage bulbs. Many wall lights and table lamps are designed to take a small bayonet bulb, as they are small and discrete, not taking any attention away from a beautifully designed lamp you’re fitting them to.

What other colour options are there?

With any light bulb, you have a range of different colour temperatures that you can choose from. The temperature you choose will affect the type of light that the bulb emits, ranging from blue-toned cool whites to bright colours, you can get creative and revive your home’s atmosphere with just a few small lighting tweaks. Because small bayonet bulbs are used in table lamps, many people will choose to go for a warm light bulb. This will emit an orangey-yellow tone that is perfect for setting up a cosy and relaxing ambience in your home.

However, if you’re placing your light bulb on a desk, you might want a brighter, cool-toned or daylight bulb to light up your workspace to help your focus and productivity.

There is also the option for coloured light bulbs, a great choice such as in a child's bedroom or garden area to give a small splash of colour.

Whatever tone you go for, you can also choose our dimmable lights which gives you more control over the lighting in your home.

At BLT Direct, you’ll have a choice from a wide range of bulbs that will suit your home best, or you could always mix and match to create a completely unique set-up for your home.

From daylight bulbs to bright colours, you can create interesting vibes in any room in your house.

Here are some of our standard colour options:

  • Warm white: These warm white light bulbs are perfect for people who want to create a calming and relaxing atmosphere in the rooms they typically unwind in – like bedrooms or living rooms. These bulbs emit a warm orange tone that works to soften skin tones and enhance warm-toned paint or furniture. This hue is also much easier on the eye than some of the brighter shades.  
  • Cool white: For the rooms where you need to really see what you’re doing, like your desk or kitchen, you might not want a warm-toned light obscuring your vision. In this case, it’s best to choose a cool white bulb that emits a brighter, vibrant white light. With a slightly blue tint, these bulbs are great for a modern and fresh look in your home.
  • Daylight: Bring the feeling of the outdoors into your own home by using daylight lights. These bulbs emit a light that closely mimics natural daylight, making them perfect for living rooms, conservatories, or offices when you’re trying to power through a hard day’s work.
  • Coloured LED: Whether you want to jazz up a children’s bedroom, or experiment with different colours in your living room, using a coloured LED light could be the perfect way to add your own signature touch to your space. From pinks and reds to green and blue, we have almost any colour you could think of.

Where can small bayonet lights be used?

Small bayonet lights are commonly used in any light fitting that will take smaller light bulbs that measure 15mm in diameter. Because of their smaller size, they work best in lamps – whether that be for your desk, bedside table, reading chair or overhead lights in your kitchen.

They work perfectly to provide focussed light in particular areas, so are not normally best when you want to light up an entire room, but that doesn’t mean you can’t experiment with different uses.