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5ft 40W DALI CCT Adjustable LED Batten - White

£6199
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge 5ft 40W DALI CCT Adjustable LED Batten is a 1525mm linear ceiling-mounted fitting with an integrated LED module delivering up to 5720lm through an opal polycarbonate diffuser. The batten allows on-site selection of three colour temperatures (3000K warm white, 4000K neutral white, 5700K cool white) via a switch on the driver, and supports DALI dimming control when connected to a compatible lighting management system.

Designed as a direct replacement for twin 5ft fluorescent tube fixtures in commercial, retail, warehouse and workshop environments, the batten provides uniform light distribution across a 145-degree beam angle with a CRI of >85. The pressed steel body carries rear and end conduit entry points for cable runs, and the hinged gear tray opens to reveal push-fit loop-in loop-out terminals for daisy-chaining multiple fittings without junction boxes. The IP20 rating suits dry indoor environments including offices, corridors, stockrooms and garages.

The white powder-coated finish on the steel body provides a clean, neutral appearance that blends with white or light-coloured ceilings. The batten measures 61mm wide and projects 71mm from the ceiling when surface-mounted, making it suitable for standard 2.4-2.7m ceiling heights without intrusion into headroom. The LED module is rated to L70B50 at 60,000 hours, equivalent to approximately 20 years at 8 hours per day, reducing lamp replacement frequency compared to fluorescent tubes. The 40W power draw at 230V 50Hz delivers a system efficacy of 157.82lm/W, meeting current energy efficiency standards with a post-2021 energy rating of Class D.

Specification
Length 1525 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
Lamp Technology LED
L70B50 60000
Energy Rating (Class) post 2021 SLR D
Beam Angle 145
CCT 3000/4000/5700 K
Light Colour CCT
Lumens 4960/5720/5410 lm
Lumens (Light Source only) 6330 lm
Wattage 40
Efficacy 157.82 lm/W
CRI >85
Driver Type DALI
Warranty 5
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

How is the colour temperature changed?

A switch on the driver allows selection between 3000K warm white, 4000K neutral white, and 5700K cool white. The selection is made once during installation or commissioning and remains fixed until manually changed by accessing the driver again.

What is DALI and is it dimmable?

DALI (Digital Addressable Lighting Interface) is a two-wire control protocol used in commercial lighting management systems. The batten dims when connected to a DALI controller, allowing programmed dimming schedules or scene control. Without a DALI controller, the batten operates at full output.

Can multiple battens be linked together?

Yes. The hinged gear tray reveals push-fit loop-in loop-out terminals that allow daisy-chaining of multiple battens from a single supply cable without additional junction boxes. The total load on the circuit must remain within the circuit breaker rating.

What is the L70B50 rating and what does it mean?

L70B50 60,000 hours means that after 60,000 hours of operation, 50% of a batch of these fittings will still produce at least 70% of their original light output. At 8 hours per day, this equates to approximately 20 years before noticeable light degradation occurs.

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.

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    Description

    The Knightsbridge 5ft 40W DALI CCT Adjustable LED Batten is a 1525mm linear ceiling-mounted fitting with an integrated LED module delivering up to 5720lm through an opal polycarbonate diffuser. The batten allows on-site selection of three colour temperatures (3000K warm white, 4000K neutral white, 5700K cool white) via a switch on the driver, and supports DALI dimming control when connected to a compatible lighting management system.

    Designed as a direct replacement for twin 5ft fluorescent tube fixtures in commercial, retail, warehouse and workshop environments, the batten provides uniform light distribution across a 145-degree beam angle with a CRI of >85. The pressed steel body carries rear and end conduit entry points for cable runs, and the hinged gear tray opens to reveal push-fit loop-in loop-out terminals for daisy-chaining multiple fittings without junction boxes. The IP20 rating suits dry indoor environments including offices, corridors, stockrooms and garages.

    The white powder-coated finish on the steel body provides a clean, neutral appearance that blends with white or light-coloured ceilings. The batten measures 61mm wide and projects 71mm from the ceiling when surface-mounted, making it suitable for standard 2.4-2.7m ceiling heights without intrusion into headroom. The LED module is rated to L70B50 at 60,000 hours, equivalent to approximately 20 years at 8 hours per day, reducing lamp replacement frequency compared to fluorescent tubes. The 40W power draw at 230V 50Hz delivers a system efficacy of 157.82lm/W, meeting current energy efficiency standards with a post-2021 energy rating of Class D.

    Specification
    Length 1525 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
    Lamp Technology LED
    L70B50 60000
    Energy Rating (Class) post 2021 SLR D
    Beam Angle 145
    CCT 3000/4000/5700 K
    Light Colour CCT
    Lumens 4960/5720/5410 lm
    Lumens (Light Source only) 6330 lm
    Wattage 40
    Efficacy 157.82 lm/W
    CRI >85
    Driver Type DALI
    Warranty 5
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    How is the colour temperature changed?

    A switch on the driver allows selection between 3000K warm white, 4000K neutral white, and 5700K cool white. The selection is made once during installation or commissioning and remains fixed until manually changed by accessing the driver again.

    What is DALI and is it dimmable?

    DALI (Digital Addressable Lighting Interface) is a two-wire control protocol used in commercial lighting management systems. The batten dims when connected to a DALI controller, allowing programmed dimming schedules or scene control. Without a DALI controller, the batten operates at full output.

    Can multiple battens be linked together?

    Yes. The hinged gear tray reveals push-fit loop-in loop-out terminals that allow daisy-chaining of multiple battens from a single supply cable without additional junction boxes. The total load on the circuit must remain within the circuit breaker rating.

    What is the L70B50 rating and what does it mean?

    L70B50 60,000 hours means that after 60,000 hours of operation, 50% of a batch of these fittings will still produce at least 70% of their original light output. At 8 hours per day, this equates to approximately 20 years before noticeable light degradation occurs.

    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.