To turn off with only setting of lighting even if people do not come home.

A lighting monitoring timer means 110 measuring the lighting time in a day time zone or a midnight time zone (however, the lighting time in a turn off reservation mode in which light is turned off at scheduled turn off time specified beforehand) is provided. The turning-off forgetfulness program means 110 is provided with a compulsive turning off instruction means 120 transmitting a turning off signal from the transmitter when the measured lighting time exceeds the set time T1 (where, a set value for daytime zone when it is the daytime zone and a set value for midnight time zone when it is the midnight time zone)(116-Y).