C35 candle light bulbs are a popular choice for decorative lighting, combining a slim, elegant shape with practical illumination. You'll commonly find them in chandeliers, wall lights, table lamps and decorative fittings where the bulb itself forms part of the overall design.
But what does C35 actually mean? What's the difference between E14, E27, B15 and B22? And which colour temperature should you choose?
Whether you're replacing an existing candle bulb, specifying lighting for a hospitality project or choosing decorative LED lighting for your home, this guide explains everything you need to know about C35 LED candle light bulbs.
What is a C35 light bulb?
A C35 is a candle-shaped light bulb with a diameter of approximately 35mm.
The "C" refers to the candle shape of the lamp, while "35" refers to its approximate diameter in millimetres.
Unlike traditional round bulbs, the C35 has a slender profile designed to resemble the shape of a candle. This makes it particularly suited to decorative light fittings where the bulb remains visible.
C35 candle bulbs are commonly used in:
- Chandeliers
- Wall lights
- Decorative pendant lights
- Table lamps
- Bedside lighting
- Hotels
- Restaurants and bars
- Luxury residential interiors
- Period properties
- Decorative architectural lighting
Modern C35 LED bulbs retain the classic candle appearance while offering the efficiency, longevity and lighting performance of LED technology.
What size is a C35 bulb?
A C35 bulb is approximately 35mm in diameter.
At Zico Lighting, our standard C35 candle lamps measure approximately 35mm in diameter and 100mm in height, including the base cap.
However, dimensions can vary slightly between different manufacturers and lamp styles, so it's always worth checking the individual product specification if you're working with a particularly small or enclosed fitting.
Is C35 the same as a candle bulb?
C35 describes a particular size and shape of candle bulb.
The traditional candle profile is narrow and elongated, making it well suited to decorative fittings such as chandeliers and wall lights.
You'll also find variations such as flame-tip candle bulbs, which feature a more decorative pointed top designed to enhance the traditional candle appearance.
So, while a C35 is a candle bulb, not every candle-style bulb will necessarily have exactly the same dimensions or profile.
What is a C35 LED bulb?
A C35 LED bulb combines the traditional appearance of a candle lamp with modern LED technology.
Older chandeliers and decorative fittings traditionally used incandescent or halogen candle bulbs. LED versions can produce a similar warm, decorative effect while consuming significantly less electricity and offering a much longer operating life.
Modern LED candle bulbs can also provide features such as:
- Smooth dimming
- High colour rendering
- Different colour temperatures
- Decorative filament designs
- Different glass finishes
- Dim-to-warm technology
This makes the C35 LED particularly useful where both appearance and quality of light are important.
What fitting does a C35 bulb use?
This is one of the most important things to check when purchasing a replacement C35 bulb.
C35 describes the shape and size of the lamp — not the base or cap.
C35 candle bulbs can be available with several different fittings.
E14 / SES
E14 is a 14mm Edison screw fitting, often referred to in the UK as a Small Edison Screw or SES.
It is one of the most common fittings used with decorative candle bulbs, particularly in chandeliers and smaller light fittings.
E27 / ES
E27 is the larger 27mm Edison screw fitting, also known as an Edison Screw or ES.
B15 / SBC
B15 is a smaller bayonet fitting, commonly known as a Small Bayonet Cap or SBC.
B22 / BC
B22 is the familiar larger Bayonet Cap or BC fitting commonly found in UK lighting.
Before ordering a C35 replacement, always check which cap your existing fitting requires.
What's the difference between E14 and E27 C35 bulbs?
The difference is the size of the screw fitting.
An E14 has a 14mm diameter screw base, while an E27 has a larger 27mm screw base.
The visible candle section of the bulb may look very similar, but the bases aren't interchangeable.
If you're replacing an existing candle bulb, remove the old lamp and check the cap before ordering the replacement.
What's the difference between B15 and B22 candle bulbs?
Both use a bayonet-style fitting, but they are different sizes.
B15 is the smaller bayonet cap, while B22 is the larger standard bayonet cap commonly used in the UK.
Again, they aren't interchangeable, so the cap type is just as important as choosing the correct bulb shape.
What colour temperature is best for a C35 candle bulb?
Colour temperature is measured in Kelvin (K) and determines whether white light appears warmer or cooler.
Because C35 bulbs are frequently used for decorative and atmospheric lighting, warmer colour temperatures are particularly popular.
2000K – Extra Warm
2000K produces an exceptionally warm, amber-like light.
It's ideal when atmosphere is the priority and can work particularly well in restaurants, bars, hotels and decorative residential spaces.
2200K – Soft Warm
2200K provides a very warm light reminiscent of traditional decorative filament lighting.
It can be an excellent choice for chandeliers, restaurants, hotels, bedrooms, lounges and period-style interiors.
2700K – Warm White
2700K offers a slightly brighter and more familiar warm-white appearance.
It's an extremely versatile choice for residential, hospitality and decorative commercial lighting.
Zico Lighting's C35 collection includes options across these warmer colour temperatures, allowing the lighting to complement the atmosphere and interior design of the space.
What is a dim-to-warm C35 bulb?
Dim-to-warm technology allows the colour of the light to become warmer as the bulb is dimmed.
With a conventional dimmable LED, the brightness reduces but the colour temperature generally remains the same.
A dim-to-warm lamp behaves differently.
As you lower the brightness, the light gradually becomes warmer, creating an effect similar to traditional incandescent lighting.
Zico Lighting offers C35 dim-to-warm candle lamps that transition through approximately 2800K to 2000K.
This is particularly useful in:
- Restaurants
- Bars
- Hotels
- Dining rooms
- Living rooms
- Bedrooms
- Luxury residential projects
The lighting can be brighter when required and then become softer, warmer and more intimate as it's dimmed.
Are C35 LED candle bulbs dimmable?
Some are, but not every LED candle bulb is dimmable.
If your light fitting is controlled by a dimmer, always check that the LED lamp is specifically designed for dimming and that your dimming system is compatible.
Zico Lighting's professional C35 lamps are designed with dimming performance in mind, with selected lamps offering 0–100% dimming and compatibility with both leading and trailing-edge systems.
Quality dimming is particularly important for decorative lighting because the lamps are often used to create atmosphere rather than simply provide maximum brightness.
Why is flicker-free dimming important?
Poor-quality LED lamps can sometimes flicker, flash or behave inconsistently when dimmed.
This can be particularly noticeable in hospitality environments, restaurants and residential spaces where the lighting is intentionally set to lower levels.
Choosing lamps designed for smooth, flicker-free dimming helps create a more comfortable and refined lighting environment.
For lighting designers and specifiers, reliable dimming performance can also be an important consideration when selecting lamps for larger projects.
What does CRI mean on a C35 bulb?
CRI stands for Colour Rendering Index.
It measures how accurately a light source reveals the colours of objects compared with a natural or reference light source. The scale runs up to 100.
Higher colour rendering can make:
- Fabrics appear richer
- Interior finishes look more natural
- Food appear more appealing
- Artwork retain its intended colours
- Furniture and decorative objects appear more vibrant
This can be especially important in restaurants, hotels, retail environments and high-end residential interiors.
Zico Lighting's C35 candle lamps include options with CRI 95, providing excellent colour representation.
Clear, frosted, amber or porcelain C35 bulbs – what's the difference?
The finish of a candle bulb can change both its appearance and how the light is perceived.
Clear C35 bulbs
Clear glass exposes the internal LED filament and provides a classic decorative appearance.
It's particularly effective in chandeliers and open light fittings where the lamp itself is intended to be seen.
Frosted C35 bulbs
Frosted glass diffuses the light and creates a softer visual appearance.
This can be useful where you want to reduce the visibility of the filament or create a more uniform glow.
Amber C35 bulbs
Amber glass enhances the warm, vintage appearance of the lamp.
Combined with an extra-warm colour temperature, it can create a particularly atmospheric effect for restaurants, bars and decorative interiors.
Porcelain C35 bulbs
Porcelain-style glass provides an elegant opaque appearance and beautifully diffused light.
It can work especially well in contemporary decorative fittings where the lamp is a visible part of the design.
Are C35 bulbs good for chandeliers?
Yes. In fact, chandeliers are one of the most common applications for C35 candle bulbs.
Their narrow candle shape complements the proportions of traditional and contemporary chandelier fittings.
When choosing C35 bulbs for a chandelier, consider:
- Cap type
- Physical dimensions
- Colour temperature
- Glass finish
- Brightness
- Dimming capability
- Colour rendering
Because a chandelier may contain several lamps, it's also important to consider their combined light output.
Six candle bulbs operating together, for example, can create a very different lighting level from a single decorative lamp.
Which C35 bulb is best for a restaurant?
Restaurants generally require lighting that combines functionality with atmosphere.
A warm 2200K candle bulb can create a relaxed and intimate feel, while an extra-warm 2000K lamp can push the atmosphere even further.
Dim-to-warm C35 lamps provide additional flexibility by allowing the lighting to change throughout the day.
A restaurant might use brighter settings during preparation or early service before gradually dimming the lighting and warming its appearance during the evening.
High CRI can also be particularly valuable in restaurants because good colour rendering helps food, table settings and interior finishes appear natural and appealing.
Which C35 candle bulb is best for a living room?
For living rooms, 2200K and 2700K C35 lamps are both popular choices.
2700K provides a versatile warm-white light, while 2200K creates a softer and more atmospheric effect.
If the lighting is frequently dimmed in the evening, a dim-to-warm candle lamp can provide even greater flexibility.
The best option will also depend on whether the bulb is hidden behind a shade or displayed in an open decorative fitting.
Are LED candle bulbs energy efficient?
LED candle bulbs use significantly less power than traditional incandescent alternatives while still providing useful light output.
For example, selected Zico C35 LED lamps use just 4W, while Lumen+ versions can provide increased light output from 5W.
This can be particularly beneficial in chandeliers and decorative fittings containing multiple lamps.
Replacing eight traditional candle bulbs with LED alternatives means the energy saving from each individual lamp is multiplied across the whole fitting.
How bright should a C35 bulb be?
Brightness is measured in lumens (lm).
The right lumen output depends on how the lamp will be used.
If the C35 is purely decorative, a lower light output may be sufficient.
If several C35 lamps are being used together in a chandelier, you should consider their combined lumen output.
For a fitting that's also expected to provide useful room illumination, a higher-output lamp may be preferable.
Zico Lighting's C35 range includes different output levels, allowing the lamp to be selected according to the application rather than relying on a one-size-fits-all approach.
What is a Lumen+ C35 candle bulb?
For applications requiring more light from the familiar C35 format, Zico Lighting offers Lumen+ C35 lamps.
Selected Lumen+ C35 lamps use 5W and can produce up to approximately 460 lumens, providing increased output while retaining the elegant candle-shaped format.
This makes them particularly useful when you want the decorative appearance of a candle bulb but require more functional illumination.
How long do C35 LED bulbs last?
A quality LED candle lamp can provide a considerably longer operating life than traditional incandescent lighting.
Selected Zico Lighting C35 lamps are rated for approximately 25,000 hours.
Actual lifespan will always depend on the lamp, fitting, operating environment and usage.
For commercial environments such as hotels and restaurants, longer lamp life can be particularly beneficial because it reduces the frequency of maintenance and lamp replacement.
Can I replace traditional candle bulbs with LED C35 bulbs?
In many cases, yes.
If the physical dimensions and cap type match your existing fitting, an LED C35 can often be used as a replacement for an older incandescent or halogen candle bulb.
However, there are several things to check first:
- Correct cap type
- Lamp dimensions
- Voltage
- Desired brightness
- Dimmer compatibility
- Suitable use within the fitting
If you're replacing lamps connected to an existing dimming system, compatibility should be checked carefully.
How do I choose the right C35 candle bulb?
Before buying, ask yourself:
- Which cap do I need? E14, E27, B15 or B22?
- What colour temperature do I want? Extra warm, soft warm or warm white?
- How bright should the lamp be?
- Will the bulb be visible? If so, the glass finish becomes particularly important.
- Do I need dimming?
- Would dim-to-warm improve the atmosphere?
- How important is colour rendering?
- Will the lamp physically fit the light fitting?
Thinking about each of these factors will help you choose a C35 that doesn't simply fit — but produces the lighting effect you actually want.
Why choose Zico Lighting C35 LED candle bulbs?
At Zico Lighting, we understand that decorative lighting is about far more than simply illuminating a room.
The appearance of the lamp, quality of light, colour rendering and dimming performance all contribute to the finished environment.
Our C35 LED candle lamp collection includes options such as:
- 2000K Extra Warm
- 2200K Soft Warm
- 2700K Warm White
- Dim-to-Warm C35 lamps
- Clear, amber, frosted and porcelain finishes
- E14, E27, B15 and B22 cap options
- High CRI options
- Smooth dimming
- Lumen+ higher-output C35 lamps
- Flame-tip decorative candle lamps
From chandeliers and wall lights to restaurants, hotels and luxury residential projects, the range has been designed to combine decorative styling with professional lighting performance.
Explore C35 LED Candle Light Bulbs from Zico Lighting
Looking for a C35 candle bulb?
Explore the Zico Lighting C35 LED candle lamp collection to find clear, frosted, amber, porcelain, dim-to-warm and high-output options in a choice of colour temperatures and cap types.
Explore Zico Lighting C35 LED candle bulbs today.