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GU10 Fixed Recessed Downlight Twist & Lock - Brass

£499
The RRP is the manufacturer's recommended retail price of the item.
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Description

The Knightsbridge RD1B is a fixed GU10 recessed downlight with a brass die-cast aluminium bezel and a twist-lock fitting mechanism. The fitting is pre-wired with a GU10 lamp holder rated for 230V mains, accepting halogen or LED GU10 bulbs up to 50W. The 79mm diameter bezel sits 2mm proud of the ceiling surface once installed, with the lamp recessed 90mm into the ceiling void.

Designed for residential and commercial installation in living rooms, hallways, kitchens and bedrooms where task or accent lighting is needed, the downlight requires a 70mm cut-out diameter and a minimum 140mm void depth above the ceiling. The twist-lock mechanism allows the lamp holder assembly to be rotated into position and locked into the ceiling aperture without screws or additional fixings, simplifying installation and lamp replacement.

The brass finish provides a warm metallic accent that pairs well with traditional, classical and warm-toned interiors. The die-cast aluminium construction provides durability and heat dissipation for halogen lamps, though most current installations use LED GU10 bulbs for lower energy consumption and cooler running. The IP20 rating makes the fitting suitable for dry indoor locations but not bathrooms or outdoor use. Dimming capability depends on the specific GU10 bulb installed.

Specification
Diameter 79 mm
Projection 2 mm
Recessed Depth 90 mm
Minimum Void 140 mm
Cut-out Diameter 70 mm
Construction Die-cast aluminium
Finish Brass
Class I
IP Rating IP20
Primary Voltage 230V 50Hz
Lamp Technology Halogen / LED Compatible
Lamp Base GU10/MR16
Lamp Included No
Dimmable Lamp dependent
Max. Wattage 50 W
Warranty 1
Downloads

Product Specification Sheet

Product Manual

Frequently Asked

What ceiling void depth is needed?

A minimum 140mm void depth above the ceiling surface is required to accommodate the 90mm recessed depth of the lamp holder assembly plus clearance for heat dissipation and wiring.

Is this dimmable?

Dimming depends on the GU10 bulb installed. Most dimmable LED GU10 bulbs work with trailing-edge dimmers, but check the specific bulb packaging for compatibility before pairing with a dimmer switch.

Can this be used in bathrooms?

No. The IP20 rating means the fitting is suitable for dry indoor locations only. Bathrooms require IP44 or IP65 rated fittings depending on the zone.

What bulb does it take?

The fitting accepts standard GU10 bulbs up to 50W. The specification table mentions an MR16 lamp holder, but the primary fitting is GU10 on 230V mains. Most users install 4-7W LED GU10 bulbs in warm white (2700K-3000K). Bulbs are sold separately.

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 RD1B is a fixed GU10 recessed downlight with a brass die-cast aluminium bezel and a twist-lock fitting mechanism. The fitting is pre-wired with a GU10 lamp holder rated for 230V mains, accepting halogen or LED GU10 bulbs up to 50W. The 79mm diameter bezel sits 2mm proud of the ceiling surface once installed, with the lamp recessed 90mm into the ceiling void.

    Designed for residential and commercial installation in living rooms, hallways, kitchens and bedrooms where task or accent lighting is needed, the downlight requires a 70mm cut-out diameter and a minimum 140mm void depth above the ceiling. The twist-lock mechanism allows the lamp holder assembly to be rotated into position and locked into the ceiling aperture without screws or additional fixings, simplifying installation and lamp replacement.

    The brass finish provides a warm metallic accent that pairs well with traditional, classical and warm-toned interiors. The die-cast aluminium construction provides durability and heat dissipation for halogen lamps, though most current installations use LED GU10 bulbs for lower energy consumption and cooler running. The IP20 rating makes the fitting suitable for dry indoor locations but not bathrooms or outdoor use. Dimming capability depends on the specific GU10 bulb installed.

    Specification
    Diameter 79 mm
    Projection 2 mm
    Recessed Depth 90 mm
    Minimum Void 140 mm
    Cut-out Diameter 70 mm
    Construction Die-cast aluminium
    Finish Brass
    Class I
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Lamp Technology Halogen / LED Compatible
    Lamp Base GU10/MR16
    Lamp Included No
    Dimmable Lamp dependent
    Max. Wattage 50 W
    Warranty 1
    Downloads

    Product Specification Sheet

    Product Manual

    Frequently Asked

    What ceiling void depth is needed?

    A minimum 140mm void depth above the ceiling surface is required to accommodate the 90mm recessed depth of the lamp holder assembly plus clearance for heat dissipation and wiring.

    Is this dimmable?

    Dimming depends on the GU10 bulb installed. Most dimmable LED GU10 bulbs work with trailing-edge dimmers, but check the specific bulb packaging for compatibility before pairing with a dimmer switch.

    Can this be used in bathrooms?

    No. The IP20 rating means the fitting is suitable for dry indoor locations only. Bathrooms require IP44 or IP65 rated fittings depending on the zone.

    What bulb does it take?

    The fitting accepts standard GU10 bulbs up to 50W. The specification table mentions an MR16 lamp holder, but the primary fitting is GU10 on 230V mains. Most users install 4-7W LED GU10 bulbs in warm white (2700K-3000K). Bulbs are sold separately.

    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.