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ESP Duceri 3W LED Emergency Exit Box Self-Test Surface Mounted Down Legend - White

£3799
The RRP is the manufacturer's recommended retail price of the item.
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Description

The ESP Duceri is a 3W LED emergency exit box with a down arrow legend, self-test function and lithium battery backup that provides three hours of illumination during mains failure. The unit operates in maintained mode, meaning the exit sign remains lit continuously on mains power and switches to battery automatically when power is lost. The self-test function runs periodic checks on the battery and LED, indicating faults via a front-panel LED status indicator.

Designed for surface mounting above exit doors, stairwells and final exit routes in commercial, hospitality, education and residential buildings where Building Regulations Part B (Fire Safety) require emergency lighting. The 402mm x 204mm x 71mm white steel housing mounts directly to wall or ceiling without recessing, and the IP20 rating makes it suitable for internal dry locations. The down arrow legend directs occupants towards exit routes below the sign position.

The 3W LED light source provides high-visibility green-and-white exit pictogram illumination visible from typical corridor and landing distances, while consuming minimal power during maintained operation. The lithium battery gives longer service life than older nickel-cadmium types and charges faster after discharge. Installation requires connection to a maintained emergency lighting circuit or unswitched mains supply with appropriate circuit protection.

Specification
Product Net Weight (KG) 1.2
Product Gross Weight (KG) 1.438
Outer Gross Weight (KG) 8.63
Product Length (mm) 402
Product Width (mm) 204
Product Height (mm) 71
Outer Length (mm) 420
Outer Width (mm) 425
Outer Height (mm) 260
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What does maintained mode mean?

Maintained mode means the exit sign remains lit continuously when mains power is present, and automatically switches to battery backup during power failure. This differs from non-maintained mode where the sign only illuminates when mains power is lost.

How does the self-test function work?

The self-test function automatically runs periodic checks on the battery charge level and LED operation, indicating any faults via a front-panel status LED. This reduces the need for manual testing and helps ensure compliance with BS 5266 emergency lighting standards.

What battery runtime does it provide?

The lithium battery provides three hours of illumination during mains failure, meeting the standard requirement for emergency exit signs in most commercial and residential applications.

Can it be ceiling-mounted or only wall-mounted?

The unit can be surface-mounted to either wall or ceiling. When ceiling-mounted the down arrow legend directs occupants towards the exit route below. Mounting fixings are accessed from the rear of the housing.

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 ESP Duceri is a 3W LED emergency exit box with a down arrow legend, self-test function and lithium battery backup that provides three hours of illumination during mains failure. The unit operates in maintained mode, meaning the exit sign remains lit continuously on mains power and switches to battery automatically when power is lost. The self-test function runs periodic checks on the battery and LED, indicating faults via a front-panel LED status indicator.

    Designed for surface mounting above exit doors, stairwells and final exit routes in commercial, hospitality, education and residential buildings where Building Regulations Part B (Fire Safety) require emergency lighting. The 402mm x 204mm x 71mm white steel housing mounts directly to wall or ceiling without recessing, and the IP20 rating makes it suitable for internal dry locations. The down arrow legend directs occupants towards exit routes below the sign position.

    The 3W LED light source provides high-visibility green-and-white exit pictogram illumination visible from typical corridor and landing distances, while consuming minimal power during maintained operation. The lithium battery gives longer service life than older nickel-cadmium types and charges faster after discharge. Installation requires connection to a maintained emergency lighting circuit or unswitched mains supply with appropriate circuit protection.

    Specification
    Product Net Weight (KG) 1.2
    Product Gross Weight (KG) 1.438
    Outer Gross Weight (KG) 8.63
    Product Length (mm) 402
    Product Width (mm) 204
    Product Height (mm) 71
    Outer Length (mm) 420
    Outer Width (mm) 425
    Outer Height (mm) 260
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What does maintained mode mean?

    Maintained mode means the exit sign remains lit continuously when mains power is present, and automatically switches to battery backup during power failure. This differs from non-maintained mode where the sign only illuminates when mains power is lost.

    How does the self-test function work?

    The self-test function automatically runs periodic checks on the battery charge level and LED operation, indicating any faults via a front-panel status LED. This reduces the need for manual testing and helps ensure compliance with BS 5266 emergency lighting standards.

    What battery runtime does it provide?

    The lithium battery provides three hours of illumination during mains failure, meeting the standard requirement for emergency exit signs in most commercial and residential applications.

    Can it be ceiling-mounted or only wall-mounted?

    The unit can be surface-mounted to either wall or ceiling. When ceiling-mounted the down arrow legend directs occupants towards the exit route below. Mounting fixings are accessed from the rear of the housing.

    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.