10 Best Dimmer Light Switch Knob in The UK

Last updated on 10/08/2025

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BG Electrical Intelligent Double Wall Dimmer Switch, 2 Way, Raised Profile, Round Edges, Nexus Metal, Brushed Steel, 200W, NBS82

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Why We Love It

Stylish design enhances home decor.
Reduces fingerprints for lasting elegance.
Ensures flicker-free, noiseless dimming.

Main Highlights

DECORATIVE DOUBLE DIMMER SWITCH WITH RAISED PROFILE FROM THE BG NEXUS METAL RANGE: Slim, raised profile with softly rounded corners in brushed steel, with colour matching fixing screws for a super-stylish design
INTELLIGENT TRAILING-EDGE DIMMER: Trailing (lagging) edge for dimming LED, dimmable CFLs and traditional lights – smooth operation of your lighting with no buzzing. Soft-start brings the lights to a set level quickly, extending the lifespan of bulbs
INTEGRATED MOISTURE GASKET CONTROL: Protects the metal edges from tarnishing. Ideal when using new plaster. No visible plastic around the dimmer. 2 way switching allows for a second switch position in a circuit. Minimum mounting box: 25mm
OVERLOAD PROTECTION PREVENTS FAILURE: If you mistakenly connect your dimmer to too many lights or transformers, it will turn the lights down or off until the load is corrected. Clearly marked terminals for easy installation
BG ELECTRICAL 25 YEARS MANUFACTURER'S WARRANTY: They guarantee against faulty materials and workmanship for 25 years – giving you total peace of mind

EVOGES Bright Polished Chrome Spare Universal Dimmer Knob, Pack of 2

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Why We Love It

Universal Compatibility for dimmers.
Firm and comfortable grip.
Installs in minutes.

Main Highlights

Universal Compatibility: Our dimmer knob is designed to fit most standard dimmer switches, making it an ideal replacement for a wide range of dimming devices. It's a hassle-free, one-size-fits-all solution.
Enhanced Grip: Crafted from high-quality materials, this dimmer knob ensures a firm and comfortable grip.
Easy Installation: No need for a professional electrician – our spare dimmer knob can be installed in minutes. Simply remove your old knob and slide on the new one. It's that simple!
Durable and Long-Lasting: Built to withstand daily use, our dimmer knob is engineered for longevity. You can trust it to endure countless adjustments without losing its functionality or aesthetic appeal.
Enhance Your Lighting Experience: Achieve the perfect lighting ambiance with precision control. Whether you're setting the mood for a romantic dinner or need bright illumination for reading, our dimmer knob puts you in command.
Affordable Solution: Why replace the entire dimmer switch when all you need is a new knob? Our spare dimmer knob offers an affordable way to rejuvenate your lighting control without breaking the bank.

LED Dimmer Switch for Dimmable LED/Halogen/Incandescent Lights Trailing Edge Dimmer Switches Rotary Push On/Off, 1 Gang, 1Way/2 Way, 3-100 Watts

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Why We Love It

Enhances LED lights brightness control.
Promotes broad compatibility with lights.
Ensures overload protection feature.

Main Highlights

Trailing edge dimmer switch for led lights
Minimum mounting box depth 25mm
Compatible with a majority of dimmable LED, halogen and incandescent lights in the market
With a lower minimum LED load (3 Watts) and Overload protection
Max. Load (LED) : 100 Watts

VIPMOON Inline LED Dimmer Switch - 1 Gang 220V-240V Trailing Edge Dimmer with Rotary ON/OFF and Knob Control for 3-100W Dimmable LED/Incandescent/Halogen Bulbs

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Why We Love It

Smooth, silent dimming experience.
Effective energy savings.
Superior quality protection.

Main Highlights

Trailing Edge Dimmer Switch: This inline dimmer switches dimming range is 0-100%, and the dimming process completely silent and noise-free. "Push on/off Rotary Trailing-Edge" mechanism, which ensures smooth and accurate dimming. (Maximum hole size: 0.75 m㎡ three-core cable)
Energy Savings: Inline dimmer switch for lamp work voltage: 220-240V AC. The applicable power: The incandescent lamps/halogen lamps: 3-100W. Dimmable LED ligths (PF=Power factor): PF>0.9: 3-100W; PF>0.5: 3-50W, The lowest brightness can be preset, cut energy costs and extend bulb life
Widely Applicable: 3-100W LED dimmer switch for led bulbs is suitable for any dimmable LED table lamps/LED floor lamps/high voltage halogen lamps/high voltage LED /low voltage halogen lamps with electronic transformers/incandescent, etc. Note: Dimmer switch does not work with LED strip lights. Not applicable to energy-saving lamps
Premium Quality: LED dimmable switch made of high-quality flame-retardant material, inline dimmer switch for lamp with excellent quality overload protection, over current protection, over temperature protection, in line with UKCA/CE/ROHS safety standards
Warm Reminder: Dimmable led switch inline cannot be used for speed control of induction transformers, fans and motors. Please confirm your LED light is marked as "Dimming/dimmable". Dimmer switch size: 81mm/3.19 inches, 33.4mm/1.31 inches, 22mm/0.86 inches (Excluding the knob itself)

EVOGES Satin Steel Spare Universal Dimmer Knob, Pack of 2

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Why We Love It

Universal compatibility for easy use.
Enhanced grip for comfort and control.
Quick installation without professional help.

Main Highlights

Universal Compatibility: Our dimmer knob is designed to fit most standard dimmer switches, making it an ideal replacement for a wide range of dimming devices. It's a hassle-free, one-size-fits-all solution.
Enhanced Grip: Crafted from high-quality materials, this dimmer knob ensures a firm and comfortable grip.
Easy Installation: No need for a professional electrician – our spare dimmer knob can be installed in minutes. Simply remove your old knob and slide on the new one. It's that simple!
Durable and Long-Lasting: Built to withstand daily use, our dimmer knob is engineered for longevity. You can trust it to endure countless adjustments without losing its functionality or aesthetic appeal.
Enhance Your Lighting Experience: Achieve the perfect lighting ambiance with precision control. Whether you're setting the mood for a romantic dinner or need bright illumination for reading, our dimmer knob puts you in command.
Affordable Solution: Why replace the entire dimmer switch when all you need is a new knob? Our spare dimmer knob offers an affordable way to rejuvenate your lighting control without breaking the bank.

EVOGES Satin Brass Spare Universal Dimmer Knob, Pack of 2

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Why We Love It

Universal fit for all dimmers.
Comfortable grip for easy control.
Quick and simple installation process.

Main Highlights

Universal Compatibility: Our dimmer knob is designed to fit most standard dimmer switches, making it an ideal replacement for a wide range of dimming devices. It's a hassle-free, one-size-fits-all solution.
Enhanced Grip: Crafted from high-quality materials, this dimmer knob ensures a firm and comfortable grip.
Easy Installation: No need for a professional electrician – our spare dimmer knob can be installed in minutes. Simply remove your old knob and slide on the new one. It's that simple!
Durable and Long-Lasting: Built to withstand daily use, our dimmer knob is engineered for longevity. You can trust it to endure countless adjustments without losing its functionality or aesthetic appeal.
Enhance Your Lighting Experience: Achieve the perfect lighting ambiance with precision control. Whether you're setting the mood for a romantic dinner or need bright illumination for reading, our dimmer knob puts you in command.
Affordable Solution: Why replace the entire dimmer switch when all you need is a new knob? Our spare dimmer knob offers an affordable way to rejuvenate your lighting control without breaking the bank.

EVOGES Matt Black Spare Universal Dimmer Knob, Pack of 2

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Why We Love It

Universal compatibility for easy use.
Enhanced grip for comfortable handling.
Quick installation without professional help.

Main Highlights

Universal Compatibility: Our dimmer knob is designed to fit most standard dimmer switches, making it an ideal replacement for a wide range of dimming devices. It's a hassle-free, one-size-fits-all solution.
Enhanced Grip: Crafted from high-quality materials, this dimmer knob ensures a firm and comfortable grip.
Easy Installation: No need for a professional electrician – our spare dimmer knob can be installed in minutes. Simply remove your old knob and slide on the new one. It's that simple!
Durable and Long-Lasting: Built to withstand daily use, our dimmer knob is engineered for longevity. You can trust it to endure countless adjustments without losing its functionality or aesthetic appeal.
Enhance Your Lighting Experience: Achieve the perfect lighting ambiance with precision control. Whether you're setting the mood for a romantic dinner or need bright illumination for reading, our dimmer knob puts you in command.
Affordable Solution: Why replace the entire dimmer switch when all you need is a new knob? Our spare dimmer knob offers an affordable way to rejuvenate your lighting control without breaking the bank.

AET CSC2GDIM40 Satin Chrome Classical 400W-10 Amp Double 2 Gang 2 Way 400W Light Dimmer Switch, 400 W, 240 V

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Why We Love It

Stylish modern design finish.
User-friendly push on/off.
Adaptable to various lighting.

Main Highlights

10 Amp Double 2 Gang Light Dimmer Switch
Push On/Off with Rotary Dimming 400W/400VA
Max. Load: 400W Per Gang. Recommended Load: 350W. Min. Load: 60W. Leading edge type. Derating required with mains halogen lamps to 250W.
Suitable for mains/low voltage lighting in 1 or 2 way circuits
Brushed Satin Matt Chrome Stainless Steel Effect Metal Plate

EVOGES White Spare Universal Dimmer Knob, Pack of 2

Free Shipping

Why We Love It

Universal compatibility for easy use.
Enhanced grip for comfortable handling.
Quick installation without professional help.

Main Highlights

Universal Compatibility: Our dimmer knob is designed to fit most standard dimmer switches, making it an ideal replacement for a wide range of dimming devices. It's a hassle-free, one-size-fits-all solution.
Enhanced Grip: Crafted from high-quality materials, this dimmer knob ensures a firm and comfortable grip.
Easy Installation: No need for a professional electrician – our spare dimmer knob can be installed in minutes. Simply remove your old knob and slide on the new one. It's that simple!
Durable and Long-Lasting: Built to withstand daily use, our dimmer knob is engineered for longevity. You can trust it to endure countless adjustments without losing its functionality or aesthetic appeal.
Enhance Your Lighting Experience: Achieve the perfect lighting ambiance with precision control. Whether you're setting the mood for a romantic dinner or need bright illumination for reading, our dimmer knob puts you in command.
Affordable Solution: Why replace the entire dimmer switch when all you need is a new knob? Our spare dimmer knob offers an affordable way to rejuvenate your lighting control without breaking the bank.

LumenEco Universal Dimmer Light Switch, Rotary Knob D-Spindle, Replacement D-Spindle, 6mm Dimmer Knobs, Durable, Easy Installation, Premium Quality - Pack of 2 (Polished Brass)

Why We Love It

Enhanced grip for smooth control.
Easy installation without tools needed.
Durable for long-lasting use.

Main Highlights

The LumenEco Universal Dimmer Knob fits most standard dimmer switches with a 6mm D-Spindle. Durable and elegant, these knobs measure 21x20x15mm, and are easy to install without special tools. Each pack includes 2 knobs, weighing 85g net and 90g gross. Upgrade your lighting control effortlessly and stylishly.
Enhanced Grip: Crafted from top-quality materials, this dimmer knob provides a firm, comfortable grip. It’s designed for smooth, precise light control, ensuring ease of use and reliability. Perfect for enhancing your lighting experience with both function and style.
Easy Install: Not a professional? No problem. Simply remove your old knob and replace it with our new ones. Just pull off the old knob and push on the new one for a quick and effortless upgrade.
Durable and Long-Lasting: Designed for everyday use, our dimmer knob is built to endure. It maintains its functionality and looks even after countless adjustments. Trust this knob for reliable performance and lasting durability in any setting.
Enhance Your Lighting Experience: Achieve the perfect lighting ambiance with precision control. Whether you're setting the mood for a romantic dinner or need bright illumination for reading, our dimmer knob puts you in command.
Affordable Solution: Why replace the entire dimmer switch when all you need is a new knob? Our spare dimmer knob offers an affordable way to rejuvenate your lighting control without breaking the bank.
Support the independent businessess: We are a family run business that strives on our customer service with over 20 years electrical and lighting knowledge. We have a solution for everything!

8.7

Excellent

We scanned 630 products

We reviewed these offers relevant to the Dimmer Light Switch Knob within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like British General, EVOGES, Belns Melns, VIPMOON, Alliance Electrical, LumenEco, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Dimmer Light Switch Knob in the market, we considered we took a deep dive into 3151 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is BG Electrical Intelligent Double Wall Dimmer Switch, 2 Way, Raised Profile, Round Edges, Nexus Metal, Brushed Steel, 200W, NBS82. We love many things about this product by British General. What sets it apart from the competition is Stylish design enhances home decor, Reduces fingerprints for lasting elegance, Ensures flicker-free, noiseless dimming.
The best value product for most shoppers and where user satisfaction is continuously the highest is EVOGES Bright Polished Chrome Spare Universal Dimmer Knob, Pack of 2 by EVOGES based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Dimmer Light Switch Knob and the best cost-to-value ratio is BG Electrical Intelligent Double Wall Dimmer Switch, 2 Way, Raised Profile, Round Edges, Nexus Metal, Brushed Steel, 200W, NBS82at British General with a 29% discount.
Our list of the best Dimmer Light Switch Knob is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Dimmer Light Switch Knob in The UK

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We scanned 630 products

We concluded that: