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Knightsbridge 4ft 32W DALI CCT Adjustable Self-Test Emergency Batten - White

£10099
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge BATSCDAST4 is a 1225mm (4ft) 32W LED batten with integrated DALI control gear, CCT switching between 3000K, 4000K and 5700K, and self-test emergency lighting functionality. The batten housing is pressed steel with an opal polycarbonate diffuser, finished in white, and provides 4480 lumens at 4000K with an efficacy of 157 lumens per watt.

Designed as a direct replacement for conventional 4ft fluorescent battens in commercial, industrial and institutional spaces, the fitting uses rear and end conduit fixings that align with existing mounting points. The hinged gear tray allows access to the DALI wiring terminals and emergency battery without removing the entire fitting from the ceiling or wall. Push-fit loop-in-loop-out terminals accept standard mains cable for daisy-chaining multiple fittings on a single circuit.

The DALI control gear allows the batten to be integrated into room-level or building-wide lighting management systems for scheduled dimming, occupancy response and daylight compensation. The self-test emergency mode automatically runs function and duration tests on the internal battery, eliminating manual testing requirements and maintaining compliance with BS 5266 and BS EN 50172. The CCT switch on the driver allows the colour temperature to be set during installation without changing the LED module.

The opal diffuser spreads light evenly across the 105-degree beam angle, reducing striping and hotspots on task surfaces below. The IP20 rating suits dry indoor environments including offices, corridors, warehouses, retail back-of-house and plant rooms. The L70B50 rating of 60,000 hours indicates the fitting will maintain at least 70% of its initial light output after approximately 6.8 years of continuous operation.

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
L70B50 60000
Energy Rating (Class) post 2021 SLR D
Beam Angle 105
CCT 3000/4000/5700 K
Light Colour CCT
Lumens 3790/4480/4120 lm
Lumens (Light Source only) 4970 lm
Lumens (Em. mode) 320 lm
Wattage 32
Efficacy 157.16 lm/W
CRI >85
Driver Type DALI
Warranty 5
Warranty Information (excluding battery)
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What does DALI control allow?

DALI (Digital Addressable Lighting Interface) allows this batten to be integrated into room-level or building-wide lighting management systems. Each fitting can be individually addressed for scheduled dimming, occupancy response, daylight compensation and remote monitoring.

How does the self-test emergency function work?

The self-test mode automatically runs function and duration tests on the internal battery at pre-programmed intervals, eliminating the need for manual monthly and annual testing. The system logs test results and maintains compliance with BS 5266 and BS EN 50172 emergency lighting standards.

Can the colour temperature be changed after installation?

Yes. The CCT switch on the driver allows the colour temperature to be set to 3000K (warm white), 4000K (neutral white) or 5700K (cool white) during or after installation without changing the LED module or removing the fitting.

What ceiling height is suitable for this batten?

The 105-degree beam angle and 4480 lumen output at 4000K suit ceiling heights of 2.4-4m in commercial and industrial spaces. For warehouse or high-bay applications above 4m, multiple fittings or higher-output models may be needed to achieve the required lux levels.

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 BATSCDAST4 is a 1225mm (4ft) 32W LED batten with integrated DALI control gear, CCT switching between 3000K, 4000K and 5700K, and self-test emergency lighting functionality. The batten housing is pressed steel with an opal polycarbonate diffuser, finished in white, and provides 4480 lumens at 4000K with an efficacy of 157 lumens per watt.

    Designed as a direct replacement for conventional 4ft fluorescent battens in commercial, industrial and institutional spaces, the fitting uses rear and end conduit fixings that align with existing mounting points. The hinged gear tray allows access to the DALI wiring terminals and emergency battery without removing the entire fitting from the ceiling or wall. Push-fit loop-in-loop-out terminals accept standard mains cable for daisy-chaining multiple fittings on a single circuit.

    The DALI control gear allows the batten to be integrated into room-level or building-wide lighting management systems for scheduled dimming, occupancy response and daylight compensation. The self-test emergency mode automatically runs function and duration tests on the internal battery, eliminating manual testing requirements and maintaining compliance with BS 5266 and BS EN 50172. The CCT switch on the driver allows the colour temperature to be set during installation without changing the LED module.

    The opal diffuser spreads light evenly across the 105-degree beam angle, reducing striping and hotspots on task surfaces below. The IP20 rating suits dry indoor environments including offices, corridors, warehouses, retail back-of-house and plant rooms. The L70B50 rating of 60,000 hours indicates the fitting will maintain at least 70% of its initial light output after approximately 6.8 years of continuous operation.

    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
    L70B50 60000
    Energy Rating (Class) post 2021 SLR D
    Beam Angle 105
    CCT 3000/4000/5700 K
    Light Colour CCT
    Lumens 3790/4480/4120 lm
    Lumens (Light Source only) 4970 lm
    Lumens (Em. mode) 320 lm
    Wattage 32
    Efficacy 157.16 lm/W
    CRI >85
    Driver Type DALI
    Warranty 5
    Warranty Information (excluding battery)
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What does DALI control allow?

    DALI (Digital Addressable Lighting Interface) allows this batten to be integrated into room-level or building-wide lighting management systems. Each fitting can be individually addressed for scheduled dimming, occupancy response, daylight compensation and remote monitoring.

    How does the self-test emergency function work?

    The self-test mode automatically runs function and duration tests on the internal battery at pre-programmed intervals, eliminating the need for manual monthly and annual testing. The system logs test results and maintains compliance with BS 5266 and BS EN 50172 emergency lighting standards.

    Can the colour temperature be changed after installation?

    Yes. The CCT switch on the driver allows the colour temperature to be set to 3000K (warm white), 4000K (neutral white) or 5700K (cool white) during or after installation without changing the LED module or removing the fitting.

    What ceiling height is suitable for this batten?

    The 105-degree beam angle and 4480 lumen output at 4000K suit ceiling heights of 2.4-4m in commercial and industrial spaces. For warehouse or high-bay applications above 4m, multiple fittings or higher-output models may be needed to achieve the required lux levels.

    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.