How Do I Choose a Light Switch?
Light switches and dimmers control the electrical circuits to lights, fans, outlets and other electrical devices. Just like outlets, switches can have different functions and uses, so make sure you match the switch and the bulb type and wattage to the application before you buy. You’ll also need to match the type of switch or dimmer to the type of circuit it’ll be used with.
Commercial, Industrial and Residential Switches: Some switches need to carry more amps than others. Most residential light switches are rated at 15 amps, industrial and commercial switches usually are rated at 20 amps.
Light Switch Styles
There are several primary light switch styles that manage a variety of situations and home décor themes. The most common styles include toggle, rocker and push-button light switches.
Toggle Light Switches
A toggle light switch is the most common type of switch found in homes and is what typically comes to mind for most people when thinking of a light switch. The name comes from the switch lever that protrudes out from the wall and toggles up and down — or back and forth if installed sideways — to control the lights.
Rocker Light Switches
A rocker light switch, sometimes referred to as a paddle or seesaw switch, operates the same way as a toggle. The switch lever itself has a different shape, a flat design that sits almost flush against the wall plate and rocks back and forth to turn the lights on and off.
Push-Button Light Switches
A push-button light switch is a classic design that has enjoyed a style revival. For those who have a vintage home décor scheme or want a unique design, this type of switch is perfectly suited.
Slide Switches
Slide dimmer switches allow you to adjust the light level rather than simply turning the light on or off. See “Dimmer Switches” below for more information.
Types of Switches
There are several different types of switches to choose from. The room’s circuit configuration, the number of lighting fixtures or ceiling fans you need to control and the location from which you want to control those fixtures will determine which one you should use. The four most common light switch types are single-pole switches, double-pole switches, three-way switches and four-way switches. The three you’re most likely to find in a home are single-pole, double-pole and three-way switches.
When attempting any electrical project, always use extreme caution. Follow the manufacturer’s instructions for installation and safety. Turn off power to the circuit at the breaker box or fuse box and use a circuit tester to ensure the power is off. Find out if you need a permit and observe applicable building and electrical codes. Contact a licensed electrician if you have any doubts or questions about the connections or if your home’s wiring doesn’t appear compatible with the changes you’re making. Lowe’s can also help with installing light fixtures and ceiling fans.
Single-Pole Switches
A single-pole light switch controls only one circuit. It’s the type most commonly found in homes and is simple to swap out as a DIY project for those who are experienced with electrical code and safety procedures. For tips, see How to Change a Light Switch.
Double-Pole Switches
A double-pole light switch is designed to connect and control two individual circuits from the same location. It can be thought of as two switches joined together, like a ceiling light and a wall outlet with a table lamp.
3-Way Switches
Want to turn on a single lighting fixture from two different places? You’ll need a 3-way light switch. This switch type is ideal for long hallways where you want to be able to flip the switch from either end, a stairway where you need to control the light from the top or bottom of the stairs, or for large rooms with multiple sitting areas.
4-Way Switches
In some areas, it’s necessary to control a lighting fixture from more than two locations. In this instance, a 4-way switch can be wired to two 3-way switches. This will give the user the ability to switch a light off or on from three or more different locations.
Combination Switches
Combination light switches offer multiple functions within the same wall box. Popular combinations include a switch and an outlet, double switches, switch and dimmer, or ceiling fan and light control. By combining functions it can save wall space.
Smart Switches and Dimmers
Smart light switches and dimmers are a great way to replace traditional switches and dimmers. They can enhance your home automation setup with convenience and energy efficiency. Smart devices allow you to control your lights remotely using a smartphone app or voice commands through Alexa, Google Assistant, or Apple HomeKit. Some can be integrated into smart home kits. Here are some key features and popular options:
- Remote Control: Turn your lights on/off from anywhere using your smartphone app.
- Voice Control: Use voice commands to control your lights.
- Scheduling: Set light schedules to turn on/off at specific times.
- Dimming Control: Adjust the brightness of your lights.
- Energy Savings: Reduce energy consumption by automating your lighting.
Make sure to use bulbs that are dimmable and compatible with your dimmer device.
Motion Sensor Light Switches
Have you ever had your arms full of groceries or laundry and had to fumble for the light switch? Motion sensor light switches can be a great solution as they turn the lights on when they detect motion in a room. They are perfect for laundry rooms, closets, and bathrooms. These sensors can save on your electric bill by only activating in rooms being used and turning the lights off automatically when the room has been empty for some time. Sensors can work with both regular and dimmable bulbs. Some smart motion sensors can be integrated into home automation kits.
Dimmer Switches
A light dimmer switch can raise or lower the brightness of a room light. Dimmer switches work with incandescent bulbs, halogen light bulbs, compact fluorescent light bulbs (CFLs) and some LED light bulbs (light-emitting diodes).
You’ll need to match the dimmer to the type of circuit. Dimmers come in the following varieties:
Plug-in light dimmers plug into wall outlets and are designed for use with lamps.
Wall Plates
Wall plates cover the exterior of a light switch and are designed to protect fingers from wiring. Wall plates come in a variety of materials, styles and configurations to match the type of switch. Coordinate the wall plate to your ceiling fan hardware or drawer pulls to create a cohesive look in the room or opt for a unique style to create contrast. For more information on wall plates, including how to choose the right one for your switch, see our Outlet and Switches Guide.
Installing a new light switch or dimmer switch is a simple DIY project. For more information, see our articles How to Change a Light Switch in 6 Easy Steps and How to Install a Dimmer Switch.