Habistat Moon Switch
The Moon Switch will switch a mains power line on and off
depending on the light level. When it is light the power will be off and when
it is dark the power will be on. The difference between the on and off levels
has been adjusted so that the unit does not flicker at the triggering point nor
will it switch on and off due to minor variations in brightness. Essentially
the unit detects day and night and can therefore switch things on that are
required during the night. The range of items that can be switched is only
limited by a maximum load of 600 watts and the imagination. Most uses will
include switching on heaters that are only required during the night. On of the
major advantages of the Moon Switch is that the natural day/night cycle is
duplicated including the seasonal variations of long day length summers and
short day length winters.