Advertising Disclosure 400w Dimmer Switch Comparison - August 2025
4 Best 400w Dimmer Switch In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. By purchasing the products we rank, you’ll get the lowest price we found while we may receive a commission at no cost to you, which will help us continue to provide you with value.
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| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3 Best Value  9.6Exceptional | 4  9.3Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelVarilight - 1 Gang 1 Way 400 Watt Standard Dimmer Switch Classic White Plastic with White Knob - HQ1W | Model AET CPC2GDIM4 Polished Chrome Classical 400W-10 Amp Double 2 Gang 2 Way 400W Light Dimmer Switch, 400 W | Model AET CPC1GDIM4 Polished Chrome Classical 400W-10 Amp Single 1 Gang 2 Way 400W Light Dimmer Switch, 400 W | Model AET CSC1GDIM40 Satin Chrome Classical 400W-10 Amp Single 1 Gang 2 Way 400W Light Dimmer Switch, 400 W, 240 V, 1 Count |
BrandVarilight | Brand AET | Brand Alliance Electrical | Brand Alliance Electrical |
Reviews | Reviews | Reviews | Reviews  |
Features | |||
Luminosity 9.8 | Luminosity 9.3 | Luminosity 9.1 | Luminosity 8.1 |
Easy installation 9.6 | Easy installation 9.1 | Easy installation 9.1 | Easy installation 9.1 |
Worth the money 9.6 | Worth the money 9.1 | Worth the money 8.6 | Worth the money 7.9 |
Tech Specs | |||
item weight 100 g | item weight 190 g | item weight 120 g | item weight 110 g |
batteries included No | batteries included No | batteries included No | batteries included No |
wattage 400 watts | wattage 400 watts | wattage 400 watts | wattage 400 watts |
item package quantity 1 | item package quantity 1 | item package quantity 1 | item package quantity 1 |
switch type 1-way | switch type 2-way, 1-way | switch type 2-way, 1-way | switch type 2-way |
customer reviews4.3 4.3 out of 5 stars 427 ratings 4.3 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 359 ratings 4.4 out of 5 stars | customer reviews 4.3 4.3 out of 5 stars 2, 275 ratings 4.3 out of 5 stars | customer reviews 4.4 4.4 out of 5 stars 944 ratings 4.4 out of 5 stars |
batteries required No | batteries required No | batteries required No | batteries required No |
product dimensions 3 x 3 x 3 cm 100 g | product dimensions 8.5 x 8.5 x 5 cm 190 g | product dimensions 8.8 x 8.8 x 5 cm 120 g | product dimensions - |
included components Range: White Finish: White Plastic Product Category: V-Dim Dimmer Insert/Knob Colour: White Knob Barcode: 5021575400182 Dimensions: 85x85x44mm Faceplate Depth: 11mm Product Weight: 140g Fixing Centres: 60.3mm Recommended Back Box Depth: 25mm Operating Voltage: 220/250V AC Maximum Load Rating: Halogen 400W Maximum Current Rating: 1.7A Terminal Live Diameter: 3.2mm Capacity: 3 x 1.5mm | included components 1 | included components 1 | included components - |
color White | color Polished chrome | color Polished chrome | color - |
plug profile- | plug profile Wall Mount | plug profile Wall Mount | plug profile Wall Mount |
finish- | finish Chrome | finish Polished Chrome | finish Brushed Chrome |
Available On | Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1
VarilightVarilight - 1 Gang 1 Way 400 Watt Standard Dimmer Switch Classic White Plastic with White Knob - HQ1W
9.8 Luminosity9.6 Easy installation9.6 worth the moneyWhy we love it
V dim technology: smooth dimming
Easy Installation: 1 gang 1 way
Compatible: incandescent Halogen
-
9.6
3
Alliance Electrical
AET CPC1GDIM4 Polished Chrome Classical 400W-10 Amp Single 1 Gang 2 Way 400W Light Dimmer Switch, 400 W
9.1 Luminosity9.1 Easy installation8.6 worth the moneyWhy we love it
Stylish polished chrome finish.
Supports versatile lighting setups.
Easy push and rotary operation.
Our ranking system
The TopChoice.co.uk Team selects top-of-the-line items from a wide selection and conducts rigorous evaluations on almost all the products available on the internet. We rank each product based on how well it matches our criteria.We can ensure that the product is well-tested with the help of our expertise, experts, and artificial intelligence technology. TopChoice.co.uk requires consistent care for the products we review, ensuring that our assessments are always accurate and up to date.
Features
Our team of experts analyzes key attributes, capabilities, significance, and many more depending on the type of product to determine its effectiveness.
Consumer Reviews
We ensure an evaluation of the ratings using references all over the internet for each product. With the help of our AI technology and professional review teams, we give weight to the worth of individual user experiences.
Popularity
Popularity is an important criterion in choosing a product. Several factors contribute to the popularity of the products on our site, including prestige, relevance, reputation, news, and more.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
Value for money
TopChoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
