Free Delivery on all orders over £99*

12V 4.8W LED Strip Light 5m - 3000K Warm White

£2099
The RRP is the manufacturer's recommended retail price of the item.
Limited Stock
We are an Independent UK Company
Price match. Found it cheaper? Contact us
Trade Discount Available
Description

The Knightsbridge LFX512WW is a 5m reel of 12V LED strip light outputting 510 lumens per metre at 3000K warm white. The strip uses 60 x 2835 SMD LEDs per metre mounted on an 8mm-wide flexible PCB that draws 4.8W per metre from a 12V DC constant voltage driver (sold separately). The rear of the strip carries 3M self-adhesive tape for direct mounting to clean, dry surfaces.

Designed for under-cabinet lighting, shelving accent, cove lighting and retail displays, the strip can be cut to length at marked intervals every few centimeters, allowing precise fitting to alcoves, cabinet runs and architectural recesses. The 120-degree beam angle provides broad illumination without hotspots when mounted behind a diffuser or baffle. The IP20 rating limits use to dry indoor locations — not suitable for bathrooms, kitchens near sinks, or outdoor installations.

The 3000K colour temperature gives a warm white output comparable to traditional halogen under-cabinet lighting, making it a direct LED replacement for older 12V halogen strip systems. The strip is dimmable when paired with a compatible 12V dimming driver or PWM controller. The Class III rating means the strip operates entirely on extra-low voltage (12V DC) with no mains voltage present at the strip itself, simplifying DIY installation when paired with a plug-in 12V power supply.

The 5m reel length is a standard modular size that can be extended using Knightsbridge connector accessories or shortened by cutting at the marked intervals. CRI >80 provides reasonable colour rendering for residential and light commercial applications where colour-critical tasks are not required. The L70B50 rating of 54,000 hours indicates the point at which 50% of LEDs will have degraded to 70% of initial output, translating to approximately 20 years at 7 hours per day.

Specification
Length 5300 mm
Width 8 mm
Projection 1.2 mm
Class III
IP Rating IP20
Primary Voltage 12V DC
Cable Length 0.3 m
Lamp Technology LED
Lamp Included Yes
Dimmable Driver dependent
L70B50 54000
Energy Rating (Class) post 2021 SLR F
Beam Angle 120
CCT 3000 K
Light Colour Warm White
Lumens 510 lm
Wattage 4.8
Efficacy 110.4 lm/W
CRI >80
Warranty 3
Downloads

Product Specification Sheet

Frequently Asked

What power supply does this strip need?

The strip requires a 12V DC constant voltage power supply or driver. At 4.8W per metre, a 5m reel draws 24W total, so a 30W or higher 12V driver is recommended to allow headroom. Knightsbridge and other manufacturers offer compatible 12V LED drivers — contact us if you need a recommendation for your installation.

Can the strip be cut to a shorter length?

Yes. The strip can be cut at marked intervals approximately every 50mm along the reel. Cut only at the marked copper pads to preserve circuit continuity. Once cut, unused sections cannot be re-joined without soldering or using connector accessories.

Is this suitable for bathroom or kitchen use?

The IP20 rating means the strip is not protected against moisture ingress and must only be installed in dry indoor locations. It is not suitable for bathrooms, kitchens near sinks, or any area where water contact is possible. For wet or damp locations, consider Knightsbridge's IP65-rated LED strip variants.

How is dimming achieved?

Dimming requires a compatible 12V dimming driver or PWM controller placed between the mains power supply and the LED strip. The strip itself does not contain dimming circuitry. Knightsbridge offers compatible dimmers — check the Specification Sheet in the Downloads tab or contact us for compatibility guidance.

Shipping & Returns

Free worldwide delivery

Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

Returns

30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.

Recommended For You

    Sophisticated Style

    Timeless Design, Effortless Elegance

    Discover lighting that blends refined design with approachable luxury. Each piece showcases thoughtful detailing and timeless character, creating a lasting impression in any space.

    Craftsmanship

    Crafted With Care & Quality

    Each piece is thoughtfully built with expert precision and refined finishes, celebrating the art of craftsmanship while ensuring every detail meets the highest standards of quality.

    Performance

    Innovative Illumination

    Our lighting incorporates advanced technology to deliver exceptional brightness and energy efficiency, offering both function and style for contemporary living.

    Effortless Upkeep

    Lighting That Lasts

    Designed for long-term reliability, our fixtures resist wear and maintain their brilliance over time, providing consistent illumination with minimal maintenance.

    Confidence

    Warranty You Can Trust

    Our collection is backed by warranties ranging from 1 to 5 years, giving you lasting peace of mind and assurance in the quality and reliability of every product.

    Luxury Delivered

    Free Worldwide Shipping

    Enjoy complimentary, secure delivery anywhere in the world on orders over £99, simply order and we’ll handle the rest.

    You Might Also Like

    Our Reviews

    From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

    Featured Projects

    Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

    Description

    The Knightsbridge LFX512WW is a 5m reel of 12V LED strip light outputting 510 lumens per metre at 3000K warm white. The strip uses 60 x 2835 SMD LEDs per metre mounted on an 8mm-wide flexible PCB that draws 4.8W per metre from a 12V DC constant voltage driver (sold separately). The rear of the strip carries 3M self-adhesive tape for direct mounting to clean, dry surfaces.

    Designed for under-cabinet lighting, shelving accent, cove lighting and retail displays, the strip can be cut to length at marked intervals every few centimeters, allowing precise fitting to alcoves, cabinet runs and architectural recesses. The 120-degree beam angle provides broad illumination without hotspots when mounted behind a diffuser or baffle. The IP20 rating limits use to dry indoor locations — not suitable for bathrooms, kitchens near sinks, or outdoor installations.

    The 3000K colour temperature gives a warm white output comparable to traditional halogen under-cabinet lighting, making it a direct LED replacement for older 12V halogen strip systems. The strip is dimmable when paired with a compatible 12V dimming driver or PWM controller. The Class III rating means the strip operates entirely on extra-low voltage (12V DC) with no mains voltage present at the strip itself, simplifying DIY installation when paired with a plug-in 12V power supply.

    The 5m reel length is a standard modular size that can be extended using Knightsbridge connector accessories or shortened by cutting at the marked intervals. CRI >80 provides reasonable colour rendering for residential and light commercial applications where colour-critical tasks are not required. The L70B50 rating of 54,000 hours indicates the point at which 50% of LEDs will have degraded to 70% of initial output, translating to approximately 20 years at 7 hours per day.

    Specification
    Length 5300 mm
    Width 8 mm
    Projection 1.2 mm
    Class III
    IP Rating IP20
    Primary Voltage 12V DC
    Cable Length 0.3 m
    Lamp Technology LED
    Lamp Included Yes
    Dimmable Driver dependent
    L70B50 54000
    Energy Rating (Class) post 2021 SLR F
    Beam Angle 120
    CCT 3000 K
    Light Colour Warm White
    Lumens 510 lm
    Wattage 4.8
    Efficacy 110.4 lm/W
    CRI >80
    Warranty 3
    Downloads

    Product Specification Sheet

    Frequently Asked

    What power supply does this strip need?

    The strip requires a 12V DC constant voltage power supply or driver. At 4.8W per metre, a 5m reel draws 24W total, so a 30W or higher 12V driver is recommended to allow headroom. Knightsbridge and other manufacturers offer compatible 12V LED drivers — contact us if you need a recommendation for your installation.

    Can the strip be cut to a shorter length?

    Yes. The strip can be cut at marked intervals approximately every 50mm along the reel. Cut only at the marked copper pads to preserve circuit continuity. Once cut, unused sections cannot be re-joined without soldering or using connector accessories.

    Is this suitable for bathroom or kitchen use?

    The IP20 rating means the strip is not protected against moisture ingress and must only be installed in dry indoor locations. It is not suitable for bathrooms, kitchens near sinks, or any area where water contact is possible. For wet or damp locations, consider Knightsbridge's IP65-rated LED strip variants.

    How is dimming achieved?

    Dimming requires a compatible 12V dimming driver or PWM controller placed between the mains power supply and the LED strip. The strip itself does not contain dimming circuitry. Knightsbridge offers compatible dimmers — check the Specification Sheet in the Downloads tab or contact us for compatibility guidance.

    Shipping & Returns

    Free worldwide delivery

    Free worldwide delivery on all orders over £99. International orders for third-party brand products may be subject to an additional courier surcharge based on volumetric weight, particularly on larger lighting fixtures — if a surcharge applies, our team will email you with the amount before dispatch and you can proceed or cancel for a full refund. See full delivery terms.

    Returns

    30-day returns window from delivery. As all our products are electrical or lighting goods, returned items must be inspected and recertified by a qualified electrician before resale — the cost of this inspection (25–40% of the item value) is deducted from your refund. Customers pay return shipping. Made-to-order, special-order and clearance items cannot be returned. See full returns policy.