Light Switch Wiring Common. First of all we should connect the ground wires to the box. The black goes in and out of the switch.
The next length of the twinearth cable will run from the light to the first two way switch. Whichever light switch project you need done, if you are unsure or uncomfortable about handling a wiring project, the better course is to find an electrician near you that will ensure that the job is done correctly. Wall switches used to control ceiling light fixtures or other fixtures come in three types.
One side of the black wire is connected to one side of the switch and to all black wires.
The white wire of a light switch is connected to all white wires. Two way switch (uk light switch) a two way switch (for switching a light from two different locations like in a hallway) has a common (c) a l1 and an l2 terminal. In position 2 when the switch is up or off com and l2 are connected together. Basically is the existing blue wire essentially a switched live like the instructions talk about or do i need a different type of switch to work with the old wiring?