Product Description Dark Out, Lights On!This tiny kit is designed to automatically turn something on at night time and back off at dawn!  A heavy duty relay provides NO and NC contacts rated at 5A at 24V.  IC design delay circuit avoids cycling on/off at marginal thresholds.  Wide range sensitivity adjustment matches any application.  Runs on 12VDC.  Use our AC125 power supply for plug-in ease!  Measures 2.6 x 2.0.  From Velleman. Include the 110VAC Power Adapter