Free Delivery on all orders over £99*

3 Gang 2-Way 40-400W Leading Edge Dimmer - White Rounded Edge

£3399
The RRP is the manufacturer's recommended retail price of the item.
90 In Stock - Ready to Ship
We are an Independent UK Company
Price match. Found it cheaper? Contact us
Trade Discount Available
Description

The Knightsbridge CU2163 is a 3-gang 2-way leading edge dimmer with a white rounded-edge faceplate, controlling incandescent lamps at 40-400W per gang or LED lamps at 3-100W per gang. Each rotary control has push on/off operation, allowing quick switching without turning the dial to minimum, and the dimming range is set by the leading edge circuitry to prevent lamp flicker at low levels.

Designed for living rooms, bedrooms and hospitality spaces where multiple lighting circuits need independent dimming control from a single wall position, the 3-gang layout suits rooms with three separate ceiling zones, three wall light circuits, or a mix of downlights, pendants and decorative fittings. The 2-way wiring allows the same circuits to be controlled from a second location (e.g. either end of a hallway or bedroom), with the dimming function available from both switch positions.

The 7mm-deep white thermoset resin plate has rounded edges and an anti-microbial coating tested to ISO 22196:2011, which inhibits bacterial growth on the surface between cleans. The plate requires a 35mm minimum back box depth and includes screw cap covers that hide the fixing screws once installed, giving a cleaner finish than exposed screw heads. The dimmer is certified to EN 60669-2-1 for residential use at 230V 50Hz and carries IP20 rating for indoor dry locations only.

Specification
Height 86 mm
Width 146 mm
Projection 7 mm
Min. Mounting Box Depth 35mm
Construction Thermoset resin
Finish White
IP Rating IP20
Primary Voltage 230V 50Hz
Anti-Microbial Properties 3rd Party Tested to ISO 22196:2011
Warranty 2
Downloads

Product Specification Sheet

Frequently Asked

What's the difference between leading edge and trailing edge dimmers?

Leading edge dimmers work by cutting the front of the AC waveform and are designed primarily for incandescent, halogen and some dimmable LED lamps. Trailing edge dimmers cut the rear of the waveform and are better suited to electronic loads including most modern LED and CFL lamps. This CU2163 is a leading edge dimmer rated at 3-100W per gang for LED — always check lamp manufacturer compatibility before pairing with LED bulbs.

Can I use this with any dimmable LED bulb?

Not all dimmable LED lamps are compatible with leading edge dimmers. Check the lamp manufacturer's specification or packaging to confirm compatibility with leading edge dimming circuitry. Incompatible lamps may flicker, buzz, or fail to dim smoothly across the full range.

What does 2-way mean?

2-way wiring allows the same lighting circuit to be controlled from two separate switch positions (e.g. either end of a hallway or at the top and bottom of stairs). The dimming function is available from both positions when correctly wired with a matching 2-way switch or dimmer.

What back box depth is required?

A 35mm minimum back box depth is needed to accommodate the dimmer module and wiring. The faceplate adds 7mm of projection from the wall once fitted.

Shipping & Returns

Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

To arrange a return, call us on 020 8149 5199 or use our contact page.

See it lit, in person

Lighting looks different in a real room. Come and see our range at our showrooms in Birmingham, Hong Kong and Dubai, or talk to our design team wherever you are.

Niori lighting showroom trailer video with closeups of alabaster lighting

Why Niori

Over 20 years lighting homes worldwide

We are a specialist lighting and mirror retailer with showrooms in Birmingham, Hong Kong and Dubai, shipping to customers around the world. Our own design team is here to help, from first idea to final fitting.

Genuine products

An authorised stockist

Every product arrives brand new with the full manufacturer warranty. Found it cheaper elsewhere? Ask us about a price match.

Installation

Fits standard UK back boxes

Designed to fit standard UK back boxes for a straightforward swap of your existing fittings.

Ordering with us

Free delivery over £99

Free delivery on orders over £99, in the UK and worldwide. Easy returns within 14 days, subject to our returns policy. Full manufacturer warranty included.

You Might Also Like

Recommended For You

    Our Reviews

    From first click to final installation, our customers share how Niori lights up their spaces. Read their words and envision what’s possible for yours.

    Featured Projects

    Step into our portfolio and see how we transform homes, restaurants, and commercial spaces and more, worldwide. Click here for a closer look at our latest projects.

    Description

    The Knightsbridge CU2163 is a 3-gang 2-way leading edge dimmer with a white rounded-edge faceplate, controlling incandescent lamps at 40-400W per gang or LED lamps at 3-100W per gang. Each rotary control has push on/off operation, allowing quick switching without turning the dial to minimum, and the dimming range is set by the leading edge circuitry to prevent lamp flicker at low levels.

    Designed for living rooms, bedrooms and hospitality spaces where multiple lighting circuits need independent dimming control from a single wall position, the 3-gang layout suits rooms with three separate ceiling zones, three wall light circuits, or a mix of downlights, pendants and decorative fittings. The 2-way wiring allows the same circuits to be controlled from a second location (e.g. either end of a hallway or bedroom), with the dimming function available from both switch positions.

    The 7mm-deep white thermoset resin plate has rounded edges and an anti-microbial coating tested to ISO 22196:2011, which inhibits bacterial growth on the surface between cleans. The plate requires a 35mm minimum back box depth and includes screw cap covers that hide the fixing screws once installed, giving a cleaner finish than exposed screw heads. The dimmer is certified to EN 60669-2-1 for residential use at 230V 50Hz and carries IP20 rating for indoor dry locations only.

    Specification
    Height 86 mm
    Width 146 mm
    Projection 7 mm
    Min. Mounting Box Depth 35mm
    Construction Thermoset resin
    Finish White
    IP Rating IP20
    Primary Voltage 230V 50Hz
    Anti-Microbial Properties 3rd Party Tested to ISO 22196:2011
    Warranty 2
    Downloads

    Product Specification Sheet

    Frequently Asked

    What's the difference between leading edge and trailing edge dimmers?

    Leading edge dimmers work by cutting the front of the AC waveform and are designed primarily for incandescent, halogen and some dimmable LED lamps. Trailing edge dimmers cut the rear of the waveform and are better suited to electronic loads including most modern LED and CFL lamps. This CU2163 is a leading edge dimmer rated at 3-100W per gang for LED — always check lamp manufacturer compatibility before pairing with LED bulbs.

    Can I use this with any dimmable LED bulb?

    Not all dimmable LED lamps are compatible with leading edge dimmers. Check the lamp manufacturer's specification or packaging to confirm compatibility with leading edge dimming circuitry. Incompatible lamps may flicker, buzz, or fail to dim smoothly across the full range.

    What does 2-way mean?

    2-way wiring allows the same lighting circuit to be controlled from two separate switch positions (e.g. either end of a hallway or at the top and bottom of stairs). The dimming function is available from both positions when correctly wired with a matching 2-way switch or dimmer.

    What back box depth is required?

    A 35mm minimum back box depth is needed to accommodate the dimmer module and wiring. The faceplate adds 7mm of projection from the wall once fitted.

    Shipping & Returns

    Delivery UK delivery is £14.99, and delivery is free on all orders of £99 or more, in the UK and internationally.

    Returns If you change your mind, you have 14 days from delivery to tell us, and a further 14 days to send the goods back. Return postage for a change-of-mind return is paid by you. Change-of-mind returns are subject to an inspection and handling deduction. See our full returns policy.

    To arrange a return, call us on 020 8149 5199 or use our contact page.