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Knightsbridge 5ft 40W DALI CCT Adjustable Self-Test Emergency LED Batten - White

£10499
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Description

The Knightsbridge BATSCDAST5 is a 5ft (1525mm) LED batten fitting delivering 40W output through an integrated LED array with selectable colour temperature across 3000K, 4000K and 5700K. The fitting combines DALI control gear for integration into building management systems with a self-test emergency function that automatically tests battery backup duration and function on a programmed schedule. The white-finished pressed steel body houses the LED array behind an opal polycarbonate diffuser, providing 145° beam spread and even light distribution across the 5ft length.

Designed as a direct replacement for 5ft twin-tube fluorescent battens in commercial, education, retail and industrial environments, the fitting uses rear and end conduit fixing points that align with the mounting positions of legacy fluorescent fittings. Push-fit loop in-loop out terminals on a hinged gear tray allow daisy-chain wiring without junction boxes, reducing installation time and eliminating the need to open multiple fittings during cable runs. The self-test emergency function supports maintained, non-maintained and switched emergency modes, with 360 lumen output in emergency operation.

The DALI control gear allows the fitting to be integrated into room-level or networked building control systems for occupancy sensing, daylight harvesting and scheduled dimming. The fitting also supports push-dimming where connected to suitable push-button switches. The selectable CCT is adjusted via a switch on the driver before installation, allowing contractors to set the colour temperature to match existing lighting in the space. At 4000K the fitting delivers 5720 lumens at 143 lumens per watt efficacy; at 3000K it delivers 4960 lumens; at 5700K it delivers 5410 lumens. The LED array carries a 60,000-hour L70B50 rating and the fitting carries a 5-year warranty (battery excluded).

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
Emergency Maintained / Non-maintained / Switched
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
Lumens (Em. mode) 360 lm
Wattage 40
Efficacy 157.82 lm/W
CRI >85
Driver Type DALI
Warranty 5
Warranty Information (excluding battery)
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What does the self-test emergency function do?

The self-test function automatically tests the battery backup duration and emergency lamp function on a programmed schedule, typically monthly and annually. Test results are stored in the driver and can be interrogated via test button or remote monitoring systems. This reduces the need for manual emergency lighting compliance testing.

Can the colour temperature be changed after installation?

The CCT is selected via a switch on the driver before final installation. Once the fitting is wired and the diffuser is closed, changing the CCT requires opening the fitting and accessing the driver. The CCT should be set during commissioning to match the required light colour across the installation.

Is DALI dimming required or can it run on standard mains?

The fitting runs on standard 230V mains and does not require DALI control to operate at full output. The DALI interface is an optional control layer — if no DALI signal is present the fitting runs at full brightness. DALI allows integration into building control systems for occupancy sensing, daylight harvesting and scheduled dimming.

What mounting positions are available?

The fitting has rear conduit fixing points for surface mounting to ceilings or walls, and end conduit fixing points for suspended or chain-mounted installation. The fixing positions align with legacy 5ft twin-tube fluorescent batten mounts, allowing direct retrofit without re-drilling ceiling joists.

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 BATSCDAST5 is a 5ft (1525mm) LED batten fitting delivering 40W output through an integrated LED array with selectable colour temperature across 3000K, 4000K and 5700K. The fitting combines DALI control gear for integration into building management systems with a self-test emergency function that automatically tests battery backup duration and function on a programmed schedule. The white-finished pressed steel body houses the LED array behind an opal polycarbonate diffuser, providing 145° beam spread and even light distribution across the 5ft length.

    Designed as a direct replacement for 5ft twin-tube fluorescent battens in commercial, education, retail and industrial environments, the fitting uses rear and end conduit fixing points that align with the mounting positions of legacy fluorescent fittings. Push-fit loop in-loop out terminals on a hinged gear tray allow daisy-chain wiring without junction boxes, reducing installation time and eliminating the need to open multiple fittings during cable runs. The self-test emergency function supports maintained, non-maintained and switched emergency modes, with 360 lumen output in emergency operation.

    The DALI control gear allows the fitting to be integrated into room-level or networked building control systems for occupancy sensing, daylight harvesting and scheduled dimming. The fitting also supports push-dimming where connected to suitable push-button switches. The selectable CCT is adjusted via a switch on the driver before installation, allowing contractors to set the colour temperature to match existing lighting in the space. At 4000K the fitting delivers 5720 lumens at 143 lumens per watt efficacy; at 3000K it delivers 4960 lumens; at 5700K it delivers 5410 lumens. The LED array carries a 60,000-hour L70B50 rating and the fitting carries a 5-year warranty (battery excluded).

    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
    Emergency Maintained / Non-maintained / Switched
    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
    Lumens (Em. mode) 360 lm
    Wattage 40
    Efficacy 157.82 lm/W
    CRI >85
    Driver Type DALI
    Warranty 5
    Warranty Information (excluding battery)
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What does the self-test emergency function do?

    The self-test function automatically tests the battery backup duration and emergency lamp function on a programmed schedule, typically monthly and annually. Test results are stored in the driver and can be interrogated via test button or remote monitoring systems. This reduces the need for manual emergency lighting compliance testing.

    Can the colour temperature be changed after installation?

    The CCT is selected via a switch on the driver before final installation. Once the fitting is wired and the diffuser is closed, changing the CCT requires opening the fitting and accessing the driver. The CCT should be set during commissioning to match the required light colour across the installation.

    Is DALI dimming required or can it run on standard mains?

    The fitting runs on standard 230V mains and does not require DALI control to operate at full output. The DALI interface is an optional control layer — if no DALI signal is present the fitting runs at full brightness. DALI allows integration into building control systems for occupancy sensing, daylight harvesting and scheduled dimming.

    What mounting positions are available?

    The fitting has rear conduit fixing points for surface mounting to ceilings or walls, and end conduit fixing points for suspended or chain-mounted installation. The fixing positions align with legacy 5ft twin-tube fluorescent batten mounts, allowing direct retrofit without re-drilling ceiling joists.

    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.