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BT EVO 18W IK10 Adjustable CCT Emergency LED Bulkhead with Microwave Sensor - White

£4199
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge BT EVO is an 18W LED bulkhead with integrated emergency function, microwave occupancy sensor, and field-adjustable wattage and colour temperature settings. The fitting offers three wattage outputs (9W, 14W, 18W) and three colour temperature options (3000K, 4000K, 5700K) selectable on installation via internal switches, allowing a single stock item to serve multiple lighting specifications. The microwave sensor detects occupancy through the polycarbonate diffuser and can be configured for daylight threshold control.

Designed for commercial corridors, stairwells, car parks, loading bays and external covered areas where both emergency lighting and motion-activated control are required, the BT EVO operates in maintained or non-maintained emergency modes. The LiFePO4 battery provides 120 lumens in emergency mode with an extended cycle life compared to standard NiCd cells. The IP65 rating protects against water jets and dust ingress, while the IK10 vandal resistance rating withstands impacts up to 20 joules, making it suitable for publicly accessible areas and semi-exposed outdoor installations.

The 300mm diameter polycarbonate body uses a twist-lock opal diffuser for tool-free lamp access and a hinged gear tray with push-fit terminals for simplified first-fix wiring. A slave live terminal allows the sensor to control downstream non-sensor fittings, reducing the number of sensor units needed in a corridor or room. The white body is UV-stabilised to resist yellowing under sunlight exposure. Interchangeable clip-on bezels in matt black, chrome, and eyelid styles (grey or black) are available separately, allowing the same base unit to match different interior schemes.

Specification
Diameter 300mm
Projection 65mm
Construction Polycarbonate
Finish White
Bezel Included Yes
Interchangeable Bezel Clip On
IP Rating IP65
Class II
Primary Voltage 230V 50Hz
Diffuser Opal
Emergency Maintained / Non-maintained (not Switched)
Lamp Technology SMD LED
Dimmable No
L70B50 50000
Energy Rating (Class) post 2021 SLR D
Beam Angle 120
CCT 3000/4000/5700K
Light Colour CCT
Lumens 890/930/915,1295/1400/1330,1520/1750/1585lm
Lumens (Light source only) 1215/1900/2300lm
Lumens (Em. mode) 120lm
Wattage 9/14/18W
Efficacy (Light source) 136/136/134lm/W
CRI >85
Driver Type Constant Current
Warranty 5 Year Guarantee
Warranty Information including battery
Downloads

Product Specification Sheet

Frequently Asked

How is the wattage and colour temperature adjusted?

Both settings are changed via internal switches accessed by removing the twist-lock diffuser. No rewiring is required. The wattage can be set to 9W, 14W or 18W, and the colour temperature to 3000K (warm white), 4000K (neutral white) or 5700K (cool white). These selections are made once during installation and remain fixed thereafter.

What is the difference between maintained and non-maintained emergency modes?

In maintained mode, the LED remains on continuously when mains power is present, switching to battery power during a mains failure. In non-maintained mode, the LED only illuminates during a mains power failure, drawing from the battery. The mode is selected during installation.

How does the microwave sensor control work?

The microwave sensor detects movement through the polycarbonate body without requiring a clear lens. Detection range and sensitivity are adjustable via internal controls. The sensor can also be configured with a daylight threshold, preventing the lamp from activating when ambient light levels are sufficient. The slave live terminal allows the sensor to switch downstream non-sensor fittings on the same circuit.

Is the bulkhead suitable for outdoor use?

Yes. The IP65 rating protects against water jets and dust, and the IK10 rating provides vandal resistance suitable for external covered areas such as building entrances, covered walkways and canopies. The polycarbonate body is UV-stabilised to resist yellowing. The fitting is not fully weatherproof for open-sky exposure without additional shelter.

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 BT EVO is an 18W LED bulkhead with integrated emergency function, microwave occupancy sensor, and field-adjustable wattage and colour temperature settings. The fitting offers three wattage outputs (9W, 14W, 18W) and three colour temperature options (3000K, 4000K, 5700K) selectable on installation via internal switches, allowing a single stock item to serve multiple lighting specifications. The microwave sensor detects occupancy through the polycarbonate diffuser and can be configured for daylight threshold control.

    Designed for commercial corridors, stairwells, car parks, loading bays and external covered areas where both emergency lighting and motion-activated control are required, the BT EVO operates in maintained or non-maintained emergency modes. The LiFePO4 battery provides 120 lumens in emergency mode with an extended cycle life compared to standard NiCd cells. The IP65 rating protects against water jets and dust ingress, while the IK10 vandal resistance rating withstands impacts up to 20 joules, making it suitable for publicly accessible areas and semi-exposed outdoor installations.

    The 300mm diameter polycarbonate body uses a twist-lock opal diffuser for tool-free lamp access and a hinged gear tray with push-fit terminals for simplified first-fix wiring. A slave live terminal allows the sensor to control downstream non-sensor fittings, reducing the number of sensor units needed in a corridor or room. The white body is UV-stabilised to resist yellowing under sunlight exposure. Interchangeable clip-on bezels in matt black, chrome, and eyelid styles (grey or black) are available separately, allowing the same base unit to match different interior schemes.

    Specification
    Diameter 300mm
    Projection 65mm
    Construction Polycarbonate
    Finish White
    Bezel Included Yes
    Interchangeable Bezel Clip On
    IP Rating IP65
    Class II
    Primary Voltage 230V 50Hz
    Diffuser Opal
    Emergency Maintained / Non-maintained (not Switched)
    Lamp Technology SMD LED
    Dimmable No
    L70B50 50000
    Energy Rating (Class) post 2021 SLR D
    Beam Angle 120
    CCT 3000/4000/5700K
    Light Colour CCT
    Lumens 890/930/915,1295/1400/1330,1520/1750/1585lm
    Lumens (Light source only) 1215/1900/2300lm
    Lumens (Em. mode) 120lm
    Wattage 9/14/18W
    Efficacy (Light source) 136/136/134lm/W
    CRI >85
    Driver Type Constant Current
    Warranty 5 Year Guarantee
    Warranty Information including battery
    Downloads

    Product Specification Sheet

    Frequently Asked

    How is the wattage and colour temperature adjusted?

    Both settings are changed via internal switches accessed by removing the twist-lock diffuser. No rewiring is required. The wattage can be set to 9W, 14W or 18W, and the colour temperature to 3000K (warm white), 4000K (neutral white) or 5700K (cool white). These selections are made once during installation and remain fixed thereafter.

    What is the difference between maintained and non-maintained emergency modes?

    In maintained mode, the LED remains on continuously when mains power is present, switching to battery power during a mains failure. In non-maintained mode, the LED only illuminates during a mains power failure, drawing from the battery. The mode is selected during installation.

    How does the microwave sensor control work?

    The microwave sensor detects movement through the polycarbonate body without requiring a clear lens. Detection range and sensitivity are adjustable via internal controls. The sensor can also be configured with a daylight threshold, preventing the lamp from activating when ambient light levels are sufficient. The slave live terminal allows the sensor to switch downstream non-sensor fittings on the same circuit.

    Is the bulkhead suitable for outdoor use?

    Yes. The IP65 rating protects against water jets and dust, and the IK10 rating provides vandal resistance suitable for external covered areas such as building entrances, covered walkways and canopies. The polycarbonate body is UV-stabilised to resist yellowing. The fitting is not fully weatherproof for open-sky exposure without additional shelter.

    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.