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Knightsbridge 5ft 37W LED Emergency Batten 4000K - White

£4699
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge 5ft LED emergency batten is a 1525mm linear ceiling fitting delivering 4290lm through an opal polycarbonate diffuser at 4000K cool white, powered by a 37W integrated LED achieving 148lm/W efficacy. The emergency function operates in maintained, non-maintained or switched modes, providing 205lm emergency output when mains power fails. The pressed steel housing mounts via rear and end conduit fixings or standard 600mm centres compatible with BESA boxes.

Designed as a direct replacement for conventional 5ft fluorescent battens in commercial, industrial and public-access spaces requiring emergency lighting compliance, the fitting suits corridors, stairwells, plant rooms, workshops and storage areas. The hinged gear tray opens to reveal push-fit loop-in loop-out terminals, allowing multiple battens to be daisy-chained without junction boxes. The 145° beam angle distributes light evenly across the full length of the fitting, minimising dark patches between multiple battens installed on a grid.

The white-painted steel body measures 61mm wide by 71mm deep, a low-profile form that fits beneath 2.4m ceilings without dominating sightlines. The opal diffuser hides the LED strip inside and softens the light output to reduce glare in spaces with reflective floors. The Class I earthed construction requires connection to a protective earth conductor, and the IP20 rating limits installation to dry indoor environments only. The L70B50 rating of 50,000 hours predicts the LED will retain 70% of its initial output after approximately 5.7 years of continuous operation.

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
Lamp Included Yes
Dimmable No
L70B50 50000
Energy Rating (Class) post 2021 SLR D
Beam Angle 145
CCT 4000 K
Light Colour Cool White
Lumens 4290 lm
Lumens (Light Source only) 5425 lm
Lumens (Em. mode) 205 lm
Wattage 37
Efficacy 148.41 lm/W
CRI >80
Driver Type Constant Current
Warranty 5
Warranty Information (excluding battery)
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What emergency modes are supported?

The batten operates in maintained (always on), non-maintained (only on during power failure), or switched modes. In emergency mode it delivers 205lm for the duration of the battery charge. Configuration is set during installation via the control gear inside the hinged tray.

How is it mounted?

The batten mounts via rear and end conduit fixings, or using the standard 600mm centre spacing compatible with BESA boxes. The hinged gear tray opens to reveal push-fit terminals for loop-in loop-out connection, allowing multiple battens to be wired in series without additional junction boxes.

Can it be used in damp or outdoor environments?

No. The IP20 rating limits installation to dry indoor environments only. For damp rooms, plant rooms with condensation, or outdoor covered areas, an IP65-rated batten is required.

What is the expected lifespan?

The LED has an L70B50 rating of 50,000 hours, meaning it will retain 70% of its initial output after approximately 5.7 years of continuous operation. The 5-year warranty excludes the emergency battery, which will require replacement at intervals depending on usage and temperature.

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 LED emergency batten is a 1525mm linear ceiling fitting delivering 4290lm through an opal polycarbonate diffuser at 4000K cool white, powered by a 37W integrated LED achieving 148lm/W efficacy. The emergency function operates in maintained, non-maintained or switched modes, providing 205lm emergency output when mains power fails. The pressed steel housing mounts via rear and end conduit fixings or standard 600mm centres compatible with BESA boxes.

    Designed as a direct replacement for conventional 5ft fluorescent battens in commercial, industrial and public-access spaces requiring emergency lighting compliance, the fitting suits corridors, stairwells, plant rooms, workshops and storage areas. The hinged gear tray opens to reveal push-fit loop-in loop-out terminals, allowing multiple battens to be daisy-chained without junction boxes. The 145° beam angle distributes light evenly across the full length of the fitting, minimising dark patches between multiple battens installed on a grid.

    The white-painted steel body measures 61mm wide by 71mm deep, a low-profile form that fits beneath 2.4m ceilings without dominating sightlines. The opal diffuser hides the LED strip inside and softens the light output to reduce glare in spaces with reflective floors. The Class I earthed construction requires connection to a protective earth conductor, and the IP20 rating limits installation to dry indoor environments only. The L70B50 rating of 50,000 hours predicts the LED will retain 70% of its initial output after approximately 5.7 years of continuous operation.

    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
    Lamp Included Yes
    Dimmable No
    L70B50 50000
    Energy Rating (Class) post 2021 SLR D
    Beam Angle 145
    CCT 4000 K
    Light Colour Cool White
    Lumens 4290 lm
    Lumens (Light Source only) 5425 lm
    Lumens (Em. mode) 205 lm
    Wattage 37
    Efficacy 148.41 lm/W
    CRI >80
    Driver Type Constant Current
    Warranty 5
    Warranty Information (excluding battery)
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What emergency modes are supported?

    The batten operates in maintained (always on), non-maintained (only on during power failure), or switched modes. In emergency mode it delivers 205lm for the duration of the battery charge. Configuration is set during installation via the control gear inside the hinged tray.

    How is it mounted?

    The batten mounts via rear and end conduit fixings, or using the standard 600mm centre spacing compatible with BESA boxes. The hinged gear tray opens to reveal push-fit terminals for loop-in loop-out connection, allowing multiple battens to be wired in series without additional junction boxes.

    Can it be used in damp or outdoor environments?

    No. The IP20 rating limits installation to dry indoor environments only. For damp rooms, plant rooms with condensation, or outdoor covered areas, an IP65-rated batten is required.

    What is the expected lifespan?

    The LED has an L70B50 rating of 50,000 hours, meaning it will retain 70% of its initial output after approximately 5.7 years of continuous operation. The 5-year warranty excludes the emergency battery, which will require replacement at intervals depending on usage and temperature.

    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.