FREQUENTLY ASKED QUESTIONS

A Light Emitting Diode (LED) consists of a semiconductor that emits light when an electrical current is passed through it. This differs from traditional incandescent lamps that use heat to alight a filament which then glows.

LED lamps are fundamentally different from conventional light sources such as incandescent, fluorescent and gas-discharge lamps. They consume far less energy, last much longer and generate very little heat. They contain no mercury or lead and, as they don’t feature any fragile parts, such as glass tubes or filaments, are highly durable, making them a sustainable choice of lighting.

Traditionally, many LEDs have relied on a strong blue light component, which can result in a cooler appearance and poorer rendering of warm tones like reds. This is where colour rendering becomes important—particularly the R9 value, which measures how accurately deep reds are displayed. Higher R9 values indicate a more balanced and natural light quality. Zico Lighting lamps are engineered to deliver superior performance, boasting R9>90 across the range, ensuring rich, vibrant colours and a more comfortable, true-to-life lighting experience.

• Extremely energy efficient compare to traditional incandescent light
• Eco-friendly lighting that contains no mercury or led
• Significant savings on your electricity bills
• Much longer lifespan, requiring less frequent replacements and maintenance
• Breakage and vibration resistance
• Life unaffected by rapid cycling
• Instant switch on with no warmup time
• No IR or UV emissions

LED Lamps typically use 90% less power than an incandescent or halogen bulb of equivalent brightness. The reason LEDs can do this is because they are far more efficient at converting electricity (measured in watts) into light (measured in lumens). The effectiveness of a light source is evaluated by its lumen-to-watt ratio, usually shortened to Lm/W.

As a general guide, a 4W Zico Lighting lamp can provide a similar brightness to a 30W incandescent, while a 6W version is comparable to around 40W. 

However, it’s important to note that brightness isn’t the only factor—there is often a trade-off between efficiency and the quality of light. Zico Lighting prioritises high colour rendering (CRI) and visual comfort, ensuring that even at lower wattages, the light produced is rich, balanced, and true to life, rather than simply maximising brightness alone.

The lifespan for each Zico Lighting product is listed on the individual datasheet, however, all Zico Lighting filament lamps have a lifespan of 25,000 hours and carry a 3 year warranty.

Dependent on how long a fixture is used per day, a 25,000 hours lifespan may look like this:

• 24 hours per day: Two years and 10 months
• 12 hours per day: Five years and 9 months
• 8 hours per day: Eight and a half years

The brightness of an LED lamp is not measured in watts. Watts are a unit of electrical consumption and do not tell us anything about the amount or type of light emitted from a light source. In an incandescent lamp the only way to increase light output is to increase wattage which is one of the reasons we previously used watts as a measure of light output. However, LEDs are far more efficient and can produce more light without increasing wattage.

Actual light output is measured in lumens (Lm) – the higher the number of lumens, the brighter the lamp.  LED Lamps can deliver an equivalent number of lumens when compared with traditional light sources. At Zico Lighting we quote an equivalent incandescent wattage within the lamp Datasheet and on the packaging, allowing you to make your purchase based on the incandescent lamps you are trying to replace. So, for example, a 4-watt Zico Lighting Clear Golfball LED Lamp, has an equivalent incandescent wattage of 30 watts as it provides enough light to replace a 30-watt incandescent.

You can return any Zico Lighting products that have not been used, with packaging intact and in re-sellable condition to us within 28 days for a full refund, excluding shipping costs. 

If you would like to return any products, please fill out the Returns Request Form within 14 days of receiving your delivery. Once your Returns Request has been accepted by us, you will have 14 days to return the goods to us.

Please refer to our Returns page for full details.

Zico Lighting lamps are designed as premium decorative light sources, where the focus is on the quality of light rather than purely maximising energy efficiency ratings based on lumens per watt (lm/W). 

While they still offer excellent efficiency compared to traditional lighting, the priority is high colour rendering, warmth, and visual comfort. This approach delivers a softer, more natural light that enhances interiors and supports wellbeing—helping to create calming, relaxing environments that feel inviting rather than overly bright or clinical.

You can find individual lamp Energy Efficiency on Datasheets and packaging.

Yes. All our lamps are designed to work with existing light fittings at 220-240V.

All our LED filament lamps are ultra dimmable 100% - 0% on leading and trailing edge. This means that they perform to a high standard with all major dimming systems, allowing you to control lighting with precision, achieving the perfect ambiance every time.

For a home solution that does not have a dimming system installed, a standard dimmer switch would work just as well. Dimmer switches can be purchased inexpensively, are easy for your electrician to fit, reduce power consumption and can increase the life of your lamp.

Zico Lighting lamps have shown flawless performance with most market leading dimmer brands, or you can check out our own dimmer options here.

Colour temperature (CCT) is a measurement in degrees Kelvin (K) of the perceived warmth or coolness of a light source. The Kelvin Scale runs in the opposite direction to the temperature scale. Light with a low Kelvin rating, 3,000K or less, is referred to as “warm” light and has a soft yellowy-orange glow. Light with a high Kelvin rating, 6,000K or more, is said to be “cool” and has a blueish white quality.

Zico Lighting lamps come in four CCT options:

• Extra Warm 2000K - comparable to candle-light
• Warm 2200K - ideal for dining and relaxation areas
• Warm White 2700K - a nice all-around light
• Dim-to-Warm - shifting Colour Temperature from cooler to warmer as the light is dimmed

The colour temperature is an important factor to consider, when choosing your light bulbs. Factors, such as the general use of the area, decorum and personal preference will need to be considered. If re-lamping the existing area, it's always a good start to look at the bulbs you have now - for good standard lamps, the Colour Temperature will be etched on the base of the bulb. If you prefer to have warmer light, then go lower, if you want it whiter and crispier, then opt for higher Kelvin value.

For new areas, or where significant changes to layout and design of the space are planned, consider engaging a lighting designer early on within the project. They can help plan your lighting to get the best effect of the space, and, if engaged early enough, help ensure the electrical wiring allows for the lighting set up you agree on.

Beam angle (measured in degrees) describes the angle at which a lamp emits its light. Lamps with a narrow beam angle create a spotting effect and are suitable for highlighting features of a room. Lamps with a wide beam angle create a flooding effect and are better for general ambience.

Zico Lighting GU10 spotlights are available in 10°, 24° and 36° beam angles, while the Landscape Accent Spotlights offer variation of 12°, 30° and 60°. 

Yes.

LEDs use around 80-90% of electrical energy for light, unlike traditional forms of lighting where most of energy is lost to heat. By comparison an incandescent lamp only uses 20% of its energy for light, with the rest going to heat. This difference means that LED lamps can produce more light using less energy, making them a greener choice. (eg. Zico Lighting 4W LED lamp can produce a similar amount of light as a 30W incandescent light bulb.)

In addition, Zico Lighting lamps have a lifespan of 25,000 hours - much higher than a traditional light bulb. As they don't need to be replaced as often, there are less wasteful.

Disposing of LED lamps is relatively straightforward. They don’t contain harmful chemicals like CFLs but, as electronic products, they do need to be disposed of responsibly under the Waste Electronic and Electrical Equipment regulations.  

All Zico Lighting lamps can be recycled. 

In the UK you can take your old lamps to the local Household Recycling Centre. Some councils also offer a household recycling collection service for small electrical items - please contact your local authority for more details.

If you are elsewhere in the world, please check your local recycling regulations.

Never put your old LED light bulbs into general waste.

LEDs are quite sensitive to temperature extremes. Most LED lamps feature a special heat sink, which is designed to regulate the air flow to the LED components and keep them at a cool temperature. 

Zico Lighting lamps can operate within the temperatures of -20°C to +40°C. 

If you plan on using your lamps in unusually cold or hot conditions, we cannot guarantee the best possible performance.

We supply the main UK base caps and specifications depending on the lamp style – check the store for available options: 

Edison Screw (ES / E27)

Small Edison Screw (SES / E14)

Miniature Edison Screw (MES / E10)

Bayonet Cap (BC / B22)

Small Bayonet Cap (SBC / B15)

G9 Two Pin

GU10

G4

Please refer to the light fixture manufacturer's manual to determine the base cap you require.

Yes, Zico Lighting is a LIAQA assured company.

Zico Lighting LED lamps typically have an IP40 rating, making them ideal for indoor decorative lighting applications such as homes, restaurants, hotels, and commercial interiors. 

An IP40 rating means the lamps are protected against solid objects like dust but are not water-resistant, so they are best suited for dry environments. For bathroom lighting, outdoor lighting, or any area exposed to moisture, we recommend using IP-rated fixtures to ensure safety and longevity. By pairing Zico Lighting high-quality LED lamps with the correct fittings, you can achieve both exceptional light quality and reliable performance across a wide range of lighting installations.

The Landscape Lighting range carries an IP66 rating and is suitable for outdoor use.

Zico Lighting lamps are primarily designed for indoor decorative lighting and are not rated for direct outdoor exposure. Most lamps carry an IP40 rating, meaning they are not protected against water or moisture. However, they can be used in outdoor settings when installed within suitably rated (IP65 or IP44) fixtures that provide the necessary protection from the elements. 

Our Landscape Lighting range carries an IP66 rating, allowing you to enjoy Zico Lighting high-quality, warm LED lighting in exterior applications such as terraces, gardens, and hospitality spaces, while ensuring safe and reliable performance.

Yes. Our full LED lamp range is certified for use within the European Union and complies with relevant EU standards. Documentation, datasheets and test reports are available upon request for project submissions.

Yes. Zico Lighting supplies premium LED filament lamps, lighting controls and landscape lighting to customers worldwide, including Europe, the Middle East and Asia. We regularly support international trade and project orders.

UK orders placed online before 12pm (11am via our Sales Office) are dispatched the same working day. We provide a choice of reliable UK delivery services, from next working day delivery before 10:30am to cost-effective 5–7 working day options, ensuring flexibility for both project and retail requirements.

All EU orders are shipped from our Netherlands distribution warehouse, ensuring fast and efficient delivery across Europe without import delays. This allows smooth supply for contractors, designers and wholesalers within the EU.

EU deliveries are typically dispatched within 1–2 working days from our Netherlands warehouse, with transit times depending on the destination country. 

Yes. Once dispatched, tracking information is provided so you can monitor your shipment through to delivery.

Absolutely. We specialise in supporting lighting designers, contractors and distributors with bulk shipments, pallet orders and consolidated project deliveries within the UK, across Europe and internationally.

Yes. We regularly supply lighting projects across the Middle East and Asia. Orders can be dispatched from our Hong Kong logistics hub for efficient regional delivery where required.

Once your order is dispatched from our warehouse, you will receive an email confirmation containing tracking reference for your order. Tracking it with the delivery service will often resolve your query. If you can't find the tracking reference or still need help tracking your delivery, please do get in touch with us and we will be happy to assist. You can find more information about lost deliveries here.

If the goods we deliver are not what you ordered, or the delivery is of an incorrect quantity, you must notify us within 7 days of receipt and, where relevant, provide detailed description and photographs of any damage. Please refer to our Returns page for full details.