Light Switch Buying Guide: Types of Light Switches Explained
Nov 24, 2025
How does a light switch work?
Light switches work because the wires within them are connected to a light fitting via electrical cables hidden in the walls or ceiling. The faceplate of the light switch is wired to the back plate, which houses the electrical wiring to form a circuit. When the switch is operated the circuit is connected or broken, causing the light to turn on or off.
Types of light switches
There are various types of light switches available, all with their own benefits. We’ll go into detail about each type to help make an informed decision.
White light switches
White light switches are the most common type of light switch found in UK homes and businesses because of their practicality and sleek design. Ideal for adding a minimalist and modern touch to a variety of interiors, they blend functionality with stylish design.
Toggle switches
Toggle light switches have a manual lever that’s pushed up and down to turn lights on or off. They’re more traditional in style and are a popular choice for interiors in need of classic character, including residential and commercial spaces.
Rocker switches
Rocker light switches work as a standard light switch with an on and off position and can be used in any room throughout your home. They are popular due to their ease of use and modern appearance.
Dimmer switches
Dimmer switches have a rotating knob that allows you to adjust the brightness levels in a room to make it lighter or darker, depending on the mood you want to create. They can be pressed to turn the light on or off, and are ideal for interiors in need of modern, versatile light fixtures.
What is a gang switch?
Gang light switches are multi-switch units mounted on a single faceplate, with the number of gangs referring to the number of switches. For example, a 1-gang light switch has one switch which controls one light, and a 2-gang light switch has two switches to operate two lights, and so on. Gang switches are popular due to their convenience, allowing you to control multiple lights from a single location.
2 Gang switches
2 gang switches are two switches that control two different light fittings. This can be part of a 2-way switch solution, where one light is controlled by 2 switches in different parts of your home.
3 Gang switches
3 gang switches have three separate switch controls on one faceplate to control different lights in your home. They are often installed in rooms which have three sets of lights for convenient light control.
4 Gang switches
4 gang switches have four separate switch controls on one faceplate to control different lights in your home, offering flexibility and convenience. They are often installed in rooms which have multiple sets of lights to meet your light control needs.
Pull cord switches
Pull cord switches are suspended from the ceiling using a string that turns the light on and off when pulled. These types of lights are more commonly used in bathrooms and wet rooms to minimise the risk of electric shocks and enhance safety.
Outdoor light switches
Outdoor light switches are built to withstand harsh weather conditions, making them ideal for gardens, patios, and other outdoor areas. These switches offer a blend of sleek design and reliable functionality to provide you with safe lighting control.
Things to consider before buying a light switch
It’s important to consider both your functional and design needs when choosing a light switch. The switches’ colour and how many are needed will impact your choice.
Colour and finish
There’s a wide range of light switch colours and finishes to choose from, including black, white, brass, and silver. Choosing the right colour and finish will enable you to match your existing décor and interior style, creating a cohesive or standout touch in your space depending on your preference.
Number of light fittings
Ensure you take some time to think about how many switches you need so you get the correct amount fitted in your home. Count how many lights are in each room, so you know how many you’ll need and then factor in setups that include 2, 3, or 4 gang switches.
Discover light switches at IronmongeryDirect
This guide has shown you the different types of light switches to choose from, how they work, and what factors to consider when making your choice. All that’s left to do now is to find the perfect option for your space from our wide range of light switches at IronmongeryDirect.
FAQs
What’s the difference between a 1-way and a 2-way switch?
A 1-way switch is the only switch that can control the light it's connected to, so the light can be turned on or off from a single location. Whereas, 2-way switches work in pairs to control the same light, allowing you to operate it from two different locations.
Do you need special light bulbs for dimmer switches?
Dimmer switches require compatible light bulbs to ensure they work as intended. To find the right bulb, explore our selection of high-quality dimmable GU10 light bulbs today.
How do I pick the correct light switch?
To pick the correct light switch, we recommend considering both function and style. Decide how many lights or fixtures you want to control, the type of control you want (toggle, dimmer, rocker etc.), and the finishes you desire.
What are the latest light switch trends?
The latest light switch trends focus on sleek designs and smart technology, which combine functionality with modern aesthetics. Traditional designs are also always a popular choice that doesn’t go out of style.
Do I need an electrician to replace a light switch?
You don’t necessarily need an electrician to replace a light switch, but in most cases, it's safest to hire a qualified electrician with experience in working with live wiring.