Time switches can be plugged in at the wall, to allow equipment or lights to switch on and
off at pre-set times. This is a useful security step to take and can also make a warm
welcome when returning home late at night. Remember to occasionally change the settings
from time to time, to avoid an obvious pattern of lighting seen from outside.
There are various types available, which plug into the wall:
One day timer
There are different models available, allowing between 5 and 48 patterns of on/off switching
in a 24-hour period.
Seven day timer
There are clockwork or digital models available. Different time sequences can be set for
all 7 days of the week. These sequences are then repeated during following week cycles.
Alternatively, there is often the added facility to use the timer as a 24-hour model.
Electronic security timer
This model has a programmable timer which gives random on/off sequences during the allocated
times set on the switch. There are normally four periods, which can be set up during a
24-hour period. It is meant as a security measure and the on/off programme can be changed,
or repeated every 24-hour period.
There are also time switches available, which operate from a light switch:
Sunset switch
This light switch is triggered by twilight. As daylight fades a sensor activates the switch.
The light will remain switched on for the preset time.
Programmable switch
Also known as tungsten lighting, this switch allows you to set the on/off facility for up
to 48 times in a 24-hour period. It can be operated manually, but also has the facility to
memorise patterns of lighting used and repeat those patterns.
