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Twin 5ft 50W Emergency LED Batten 4000K - White

£11199
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Description

The Knightsbridge T8BLED25EM1 is a twin-tube 5ft LED batten with integrated emergency lighting, delivering 5250 lumens at 4000K cool white through an opal polycarbonate diffuser. The twin-LED configuration replaces traditional twin-T8 fluorescent battens in commercial, industrial and public building applications where emergency lighting is required by regulation. The unit operates in maintained, non-maintained or switched emergency modes with a 3-hour runtime from the internal battery.

Designed for ceiling or wall mounting in corridors, stairwells, warehouses, workshops, car parks, commercial kitchens and retail back-of-house areas, the batten provides both task lighting during normal operation and code-compliant emergency lighting during mains failure. The 1525mm length covers approximately 8-10m² of floor area depending on ceiling height and reflectance. The pressed steel body and polycarbonate diffuser carry an IP20 rating, suitable for dry indoor environments.

The integrated LED array delivers 102 lumens per watt at 50W, with an L70B50 lifespan of 50,000 hours — approximately 17 years under typical commercial operating patterns. The constant-current driver maintains stable output across the 230V 50Hz mains supply. The emergency battery is rated for 3-hour maintained or non-maintained operation at 280 lumens, meeting UK Building Regulations for emergency escape lighting. The 120° beam angle provides wide-area coverage without requiring multiple fittings in standard 2.4-2.7m ceiling heights.

The white powder-coated finish integrates cleanly into commercial ceilings and pairs with standard white or off-white ceiling tiles. The batten measures 1525mm long × 95mm wide × 85mm projection, fitting into ceiling grids designed for traditional 5ft fluorescent battens. The unit carries a 5-year warranty on the LED and driver (battery excluded), and is rated Energy Class D under post-2021 single lighting regulation standards.

Specification
Length 1525 mm
Width 95 mm
Projection 85 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 120
CCT 4000 K
Light Colour Cool White
Lumens 5250 lm
Lumens (Light Source only) 6535 lm
Lumens (Em. mode) 280 lm
Wattage 50
Efficacy 102 lm/W
CRI >80
Driver Type Constant Current
Warranty 5
Warranty Information (excluding battery)
Downloads

Product Specification Sheet

Frequently Asked

What's the difference between maintained and non-maintained emergency modes?

In maintained mode, the emergency LEDs operate continuously whenever the mains supply is live, switching to battery power during outages. In non-maintained mode, the emergency LEDs only activate when mains power fails. Switched mode allows the fitting to operate as a standard light when manually switched on, with emergency function activating during power failure regardless of switch position.

How long does the emergency battery last?

The internal battery provides 3 hours of emergency illumination at 280 lumens during mains failure, meeting UK Building Regulations Part B requirements for emergency escape lighting. The battery requires periodic replacement — typical lifespan is 3-4 years depending on discharge cycles and ambient temperature.

Can this replace a traditional twin-T8 fluorescent batten?

Yes. The 1525mm length and 95mm width match standard 5ft twin-T8 battens. The mounting centres are compatible with existing ceiling grid and surface-mount positions designed for fluorescent fittings. This LED version eliminates the need for tube replacement and reduces energy consumption by approximately 60% compared to equivalent twin-58W fluorescent output.

Is the batten suitable for outdoor use?

No. The IP20 rating means the batten is designed for dry indoor environments only. For outdoor or wet-area applications, you would need a fitting with IP65 or higher rating.

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 T8BLED25EM1 is a twin-tube 5ft LED batten with integrated emergency lighting, delivering 5250 lumens at 4000K cool white through an opal polycarbonate diffuser. The twin-LED configuration replaces traditional twin-T8 fluorescent battens in commercial, industrial and public building applications where emergency lighting is required by regulation. The unit operates in maintained, non-maintained or switched emergency modes with a 3-hour runtime from the internal battery.

    Designed for ceiling or wall mounting in corridors, stairwells, warehouses, workshops, car parks, commercial kitchens and retail back-of-house areas, the batten provides both task lighting during normal operation and code-compliant emergency lighting during mains failure. The 1525mm length covers approximately 8-10m² of floor area depending on ceiling height and reflectance. The pressed steel body and polycarbonate diffuser carry an IP20 rating, suitable for dry indoor environments.

    The integrated LED array delivers 102 lumens per watt at 50W, with an L70B50 lifespan of 50,000 hours — approximately 17 years under typical commercial operating patterns. The constant-current driver maintains stable output across the 230V 50Hz mains supply. The emergency battery is rated for 3-hour maintained or non-maintained operation at 280 lumens, meeting UK Building Regulations for emergency escape lighting. The 120° beam angle provides wide-area coverage without requiring multiple fittings in standard 2.4-2.7m ceiling heights.

    The white powder-coated finish integrates cleanly into commercial ceilings and pairs with standard white or off-white ceiling tiles. The batten measures 1525mm long × 95mm wide × 85mm projection, fitting into ceiling grids designed for traditional 5ft fluorescent battens. The unit carries a 5-year warranty on the LED and driver (battery excluded), and is rated Energy Class D under post-2021 single lighting regulation standards.

    Specification
    Length 1525 mm
    Width 95 mm
    Projection 85 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 120
    CCT 4000 K
    Light Colour Cool White
    Lumens 5250 lm
    Lumens (Light Source only) 6535 lm
    Lumens (Em. mode) 280 lm
    Wattage 50
    Efficacy 102 lm/W
    CRI >80
    Driver Type Constant Current
    Warranty 5
    Warranty Information (excluding battery)
    Downloads

    Product Specification Sheet

    Frequently Asked

    What's the difference between maintained and non-maintained emergency modes?

    In maintained mode, the emergency LEDs operate continuously whenever the mains supply is live, switching to battery power during outages. In non-maintained mode, the emergency LEDs only activate when mains power fails. Switched mode allows the fitting to operate as a standard light when manually switched on, with emergency function activating during power failure regardless of switch position.

    How long does the emergency battery last?

    The internal battery provides 3 hours of emergency illumination at 280 lumens during mains failure, meeting UK Building Regulations Part B requirements for emergency escape lighting. The battery requires periodic replacement — typical lifespan is 3-4 years depending on discharge cycles and ambient temperature.

    Can this replace a traditional twin-T8 fluorescent batten?

    Yes. The 1525mm length and 95mm width match standard 5ft twin-T8 battens. The mounting centres are compatible with existing ceiling grid and surface-mount positions designed for fluorescent fittings. This LED version eliminates the need for tube replacement and reduces energy consumption by approximately 60% compared to equivalent twin-58W fluorescent output.

    Is the batten suitable for outdoor use?

    No. The IP20 rating means the batten is designed for dry indoor environments only. For outdoor or wet-area applications, you would need a fitting with IP65 or higher rating.

    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.