If just one switch controls the light, buy a single-pole dimmer. In most home wiring situations, you will probably only find three kinds of light switches. When trying to find a wiring diagram for a light switch, you first have to ask yourself what type of a light switch you’re working with. It’s possible that you could encounter a double pole light switch within the house, but these aren’t very typical in a residential setting.
Looking at the very top of the box, see if there’s just one wire coming in through a central hole. It is crucial to be aware that a white wire that’s found in a switch box isn’t necessarily a neutral wire, especially in the event the white wire is connected to the switch which would indicate that the white wire is actually used for switching power. Because the white wire from the switch to the light is currently a popular wire, it has to be marked to show it’s hot.
The switch is going to be installed inline over the principal breaker, so it’s a good possibility you will have no way to kill the circuit safely. Armed with this info you should currently be in a position to clearly recognize the kind of switch you’re working with, and the wiring diagram which will help you complete your house wiring undertaking. All of the further switches are internediate types (4 terminals), and connect into the center of the circuit in just the same manner. Three-way switches are a bit confusing in the beginning, but once you consider the diagram and think it through, it is going to make perfect sense. A dimmer switch may be used on at least one of these circuits, but for two switches and above, just one of them may be a dimmer. Ordinary dimmer switches are not meant for use with the majority of fluorescent lights.