Free Delivery on all orders over £99*

Knightsbridge 4ft 18/32W CCT Adjustable Self-Test Emergency LED Batten - White

£6899
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 BATSCWST4 is a 4ft LED emergency batten with switchable wattage (18W or 32W) and three selectable colour temperatures (3000K warm white, 4000K neutral white, 5700K daylight). The fitting contains an integrated self-test emergency function that runs automatic tests on battery charge and lamp operation, with maintained, non-maintained and switched emergency modes available. At 32W and 4000K the batten outputs 4490lm through an opal polycarbonate diffuser.

Designed as a direct replacement for 4ft twin-lamp fluorescent battens in commercial, educational, healthcare and industrial settings, the fitting mounts on standard 600mm fixing centres or BESA boxes and includes rear and end-entry conduit points for cable management. The hinged gear tray opens for access to push-fit loop-in-loop-out terminals, allowing multiple battens to be daisy-chained on a single circuit without additional junction boxes. The Class I construction requires an earth connection.

The pressed steel body is powder-coated white and measures 1225mm x 61mm x 71mm projection. The CCT switch on the gear tray allows installers to set the light colour after installation without changing the lamp, giving flexibility for spaces where colour temperature needs vary. The 18W mode suits corridors and circulation areas where lower light levels are acceptable, while the 32W mode provides task-level illumination for offices and workshop environments. The L70B50 rating of 60,000 hours suggests over 6 years of continuous operation before the LED output drops to 70% of initial lumens.

The self-test emergency function runs a short functional test monthly and a full 3-hour duration test annually, with status indicated by an LED on the fitting. In emergency mode the batten provides 320lm output from the internal battery pack, sufficient for escape route lighting under BS 5266 and BS EN 1838 standards. The 5-year warranty covers the LED and driver components but excludes the emergency battery.

Specification
Length 1225 mm
Width 61 mm
Projection 71 mm
Construction Pressed steel
Construction 2 & polycarbonate
Finish White
Class I
IP Rating IP20
Primary Voltage 230V 50Hz
Diffuser Opal
Emergency Maintained / Non-maintained / Switched
Lamp Technology LED
Dimmable No
L70B50 60000
Energy Rating (Class) post 2021 SLR D
Beam Angle 145
CCT 3000/4000/5700 K
Light Colour CCT
Lumens 2380/2600/2570, 3950/4490/4310 lm
Lumens (Light Source only) 5020 lm
Lumens (Em. mode) 320 lm
Wattage 18/32
Efficacy 159.14 lm/W
CRI >85
Driver Type Constant Current
Warranty 5
Warranty Information (excluding battery)
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What is self-test emergency lighting?

The self-test function automatically checks the battery charge and lamp operation on a scheduled basis without manual intervention. The fitting runs a short functional test once per month and a full 3-hour duration test once per year, with results indicated by an LED status light on the fitting. This removes the need for manual testing logs in many commercial installations.

Can the colour temperature be changed after installation?

Yes. A CCT switch on the gear tray allows the installer to select 3000K warm white, 4000K neutral white or 5700K daylight. The switch is accessible by opening the hinged gear tray and does not require changing any LED components.

What's the difference between 18W and 32W modes?

The wattage is selectable via a switch on the gear tray. At 18W the batten outputs 2600lm at 4000K, suitable for corridors and circulation areas. At 32W it outputs 4490lm at 4000K, providing task-level lighting for offices and workshops. Switching wattage changes both the light output and the energy consumption.

Does it fit standard fluorescent batten mountings?

Yes. The batten mounts on 600mm fixing centres and is BESA box compatible, making it a direct replacement for twin-lamp 4ft fluorescent battens. Rear and end-entry conduit points allow cables to be run in armoured or plastic conduit where required.

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 BATSCWST4 is a 4ft LED emergency batten with switchable wattage (18W or 32W) and three selectable colour temperatures (3000K warm white, 4000K neutral white, 5700K daylight). The fitting contains an integrated self-test emergency function that runs automatic tests on battery charge and lamp operation, with maintained, non-maintained and switched emergency modes available. At 32W and 4000K the batten outputs 4490lm through an opal polycarbonate diffuser.

    Designed as a direct replacement for 4ft twin-lamp fluorescent battens in commercial, educational, healthcare and industrial settings, the fitting mounts on standard 600mm fixing centres or BESA boxes and includes rear and end-entry conduit points for cable management. The hinged gear tray opens for access to push-fit loop-in-loop-out terminals, allowing multiple battens to be daisy-chained on a single circuit without additional junction boxes. The Class I construction requires an earth connection.

    The pressed steel body is powder-coated white and measures 1225mm x 61mm x 71mm projection. The CCT switch on the gear tray allows installers to set the light colour after installation without changing the lamp, giving flexibility for spaces where colour temperature needs vary. The 18W mode suits corridors and circulation areas where lower light levels are acceptable, while the 32W mode provides task-level illumination for offices and workshop environments. The L70B50 rating of 60,000 hours suggests over 6 years of continuous operation before the LED output drops to 70% of initial lumens.

    The self-test emergency function runs a short functional test monthly and a full 3-hour duration test annually, with status indicated by an LED on the fitting. In emergency mode the batten provides 320lm output from the internal battery pack, sufficient for escape route lighting under BS 5266 and BS EN 1838 standards. The 5-year warranty covers the LED and driver components but excludes the emergency battery.

    Specification
    Length 1225 mm
    Width 61 mm
    Projection 71 mm
    Construction Pressed steel
    Construction 2 & polycarbonate
    Finish White
    Class I
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Diffuser Opal
    Emergency Maintained / Non-maintained / Switched
    Lamp Technology LED
    Dimmable No
    L70B50 60000
    Energy Rating (Class) post 2021 SLR D
    Beam Angle 145
    CCT 3000/4000/5700 K
    Light Colour CCT
    Lumens 2380/2600/2570, 3950/4490/4310 lm
    Lumens (Light Source only) 5020 lm
    Lumens (Em. mode) 320 lm
    Wattage 18/32
    Efficacy 159.14 lm/W
    CRI >85
    Driver Type Constant Current
    Warranty 5
    Warranty Information (excluding battery)
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What is self-test emergency lighting?

    The self-test function automatically checks the battery charge and lamp operation on a scheduled basis without manual intervention. The fitting runs a short functional test once per month and a full 3-hour duration test once per year, with results indicated by an LED status light on the fitting. This removes the need for manual testing logs in many commercial installations.

    Can the colour temperature be changed after installation?

    Yes. A CCT switch on the gear tray allows the installer to select 3000K warm white, 4000K neutral white or 5700K daylight. The switch is accessible by opening the hinged gear tray and does not require changing any LED components.

    What's the difference between 18W and 32W modes?

    The wattage is selectable via a switch on the gear tray. At 18W the batten outputs 2600lm at 4000K, suitable for corridors and circulation areas. At 32W it outputs 4490lm at 4000K, providing task-level lighting for offices and workshops. Switching wattage changes both the light output and the energy consumption.

    Does it fit standard fluorescent batten mountings?

    Yes. The batten mounts on 600mm fixing centres and is BESA box compatible, making it a direct replacement for twin-lamp 4ft fluorescent battens. Rear and end-entry conduit points allow cables to be run in armoured or plastic conduit where required.

    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.