Which type of switch would be best for controlling a light from three different locations?

To control a light from three different locations, the best option is a four-way switch. This type of switch is specifically designed to be used in conjunction with three-way switches to allow control of a single light fixture from multiple points.

In a typical setup, two three-way switches are utilized at the ends, allowing for control from the first and last locations. The four-way switch is then placed in the circuit between these two three-way switches, enabling additional locations to control the same light. This configuration allows for flexibility in lighting control within larger spaces, such as long hallways or open areas.

The other types of switches mentioned have different functionalities. A two-way switch can only control a light from two locations, a rocker switch might be a style of actuating switch but does not specify multi-location control, and a three-way switch can control a light from two locations but does not accommodate control from a third location without the help of a four-way switch. Therefore, the four-way switch is the only solution suitable for managing a single light from three different locations.