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1 Gang 2-Way 10-200W Intelligent Dimmer - Gunmetal Flat Plate

£1899
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Description

The Knightsbridge FP2191GM is a 1-gang 2-way intelligent dimmer rated for 10-200W loads (5-150W for LED lamps), housed in a gunmetal flat plate with a matching rotary dimmer knob. The dimmer supports both trailing-edge and leading-edge modes, pre-set to trailing-edge for LED compatibility. The rotary control combines push on/off with rotate-to-dim functionality, giving single-handed control over both switching and brightness.

Designed for 2-way switching circuits where the same lighting circuit is controlled from two locations, the dimmer fits a standard 25mm minimum back box depth. The flat plate projects just 2.5mm from the wall once installed, making it suitable for low-profile installations where a traditional domed switch would protrude too far. The front-mounted trimming and mode-switching controls allow adjustment without removing the faceplate from the wall.

The gunmetal finish is a dark grey-bronze metallic tone that sits between graphite and pewter, pairing with industrial, contemporary and monochrome interiors. The premium-grade steel construction includes overload and overheat protection, plus an inrush current limiter to handle the initial power draw when switching on LED lamps. The dimmer carries a Class I earth terminal and IP20 rating for dry indoor use.

For best performance, use with dimmable LED lamps of the same brand, wattage and model on a single circuit. Mixing different lamp types or wattages on the same dimmer can cause flickering, reduced dimming range or inconsistent behaviour.

Specification
Height 87.5 mm
Width 87.5 mm
Projection 2.5 mm
Min. Mounting Box Depth 25mm
Construction Premium grade steel
Finish Gunmetal
Class I
IP Rating IP20
Primary Voltage 230V 50Hz
Earth Terminal Yes
Terminal Screw
Warranty 2
Downloads

Product Specification Sheet

Frequently Asked

What's the difference between trailing-edge and leading-edge modes?

Trailing-edge mode is optimised for LED and low-voltage lamps, cutting the trailing part of the AC waveform to reduce dimming flicker and hum. Leading-edge mode suits traditional incandescent and halogen lamps. The dimmer is pre-set to trailing-edge but can be switched to leading-edge using the front-mounted control if needed.

Can this dimmer be used in a 1-way circuit?

Yes. The 2-way designation means it supports both 1-way and 2-way switching circuits. For a single switch controlling one lighting circuit, it functions as a standard 1-way dimmer.

What back box depth is required?

A 25mm minimum back box depth is needed. The flat plate adds just 2.5mm of projection from the wall once fitted, making the total installed depth approximately 27.5mm.

Why should I avoid mixing lamp types on the same circuit?

Different LED lamps have different driver circuits and dimming curves. Mixing brands, wattages or models on the same dimmer can cause some lamps to flicker, others to dim unevenly, or the dimmer to fail to reach full brightness or full dim. Best results come from using identical lamps throughout the circuit.

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 FP2191GM is a 1-gang 2-way intelligent dimmer rated for 10-200W loads (5-150W for LED lamps), housed in a gunmetal flat plate with a matching rotary dimmer knob. The dimmer supports both trailing-edge and leading-edge modes, pre-set to trailing-edge for LED compatibility. The rotary control combines push on/off with rotate-to-dim functionality, giving single-handed control over both switching and brightness.

    Designed for 2-way switching circuits where the same lighting circuit is controlled from two locations, the dimmer fits a standard 25mm minimum back box depth. The flat plate projects just 2.5mm from the wall once installed, making it suitable for low-profile installations where a traditional domed switch would protrude too far. The front-mounted trimming and mode-switching controls allow adjustment without removing the faceplate from the wall.

    The gunmetal finish is a dark grey-bronze metallic tone that sits between graphite and pewter, pairing with industrial, contemporary and monochrome interiors. The premium-grade steel construction includes overload and overheat protection, plus an inrush current limiter to handle the initial power draw when switching on LED lamps. The dimmer carries a Class I earth terminal and IP20 rating for dry indoor use.

    For best performance, use with dimmable LED lamps of the same brand, wattage and model on a single circuit. Mixing different lamp types or wattages on the same dimmer can cause flickering, reduced dimming range or inconsistent behaviour.

    Specification
    Height 87.5 mm
    Width 87.5 mm
    Projection 2.5 mm
    Min. Mounting Box Depth 25mm
    Construction Premium grade steel
    Finish Gunmetal
    Class I
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Earth Terminal Yes
    Terminal Screw
    Warranty 2
    Downloads

    Product Specification Sheet

    Frequently Asked

    What's the difference between trailing-edge and leading-edge modes?

    Trailing-edge mode is optimised for LED and low-voltage lamps, cutting the trailing part of the AC waveform to reduce dimming flicker and hum. Leading-edge mode suits traditional incandescent and halogen lamps. The dimmer is pre-set to trailing-edge but can be switched to leading-edge using the front-mounted control if needed.

    Can this dimmer be used in a 1-way circuit?

    Yes. The 2-way designation means it supports both 1-way and 2-way switching circuits. For a single switch controlling one lighting circuit, it functions as a standard 1-way dimmer.

    What back box depth is required?

    A 25mm minimum back box depth is needed. The flat plate adds just 2.5mm of projection from the wall once fitted, making the total installed depth approximately 27.5mm.

    Why should I avoid mixing lamp types on the same circuit?

    Different LED lamps have different driver circuits and dimming curves. Mixing brands, wattages or models on the same dimmer can cause some lamps to flicker, others to dim unevenly, or the dimmer to fail to reach full brightness or full dim. Best results come from using identical lamps throughout the circuit.

    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.