This is about the method for performing security function of wall mounted use electric switch and the switch itself. The invented product comprising control micom [U1] operates 24 hr clock based on the outside luminance detected by CDS. The switch turns off lamps during daytime and turns on lamps during specific nigh times according to the on/off timer program [s108] loaded in the micom [U1], when the security mode is set on by the users one touch key [SW2] the switch turns on and off lamps according to the users on/off key [SW1] when the security mode is not set. Because users can operate the security function without a clock setting or time schedules it is convenient to use. And, because lamps are turned off during the daytime, power consumption is also reduced.
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