I have a relay that I want to use to control a house switch (120 volt AC) The part is radioshack 275-217 DPDT Plug-In Relay. characterisitics are Contacts: Silver-cadmium oxide, rated 10A Excepted Life: 100,000 operations (min.) at rated load Absolute maximum ratings Ambient temp -40 to +158F Continuous coil voltage: 132VAC Power consumption: 1.10VA max Electrical characteristics Rate voltage: 110/120VAC Coil resistance: 4.430 ohms max. Pull-in voltage: 9.6VAC max. Dropout voltage: 36VAC min. Nominal coil current: 8.4/9.2mA Contact rating: 10A at 110VAC or 24VDC Maximum operating voltage: 250VAC /125VDC Minimum load: 100mA , 5VDC Would this be Ok to use and if so is pin 7 and 8 on the relay where I put the 5 volts or greater to control the switch located at pin 5 and pin 6? The reason why I ask this is I used a simple 9 volt battery on pin 7 and pin 8 to see if the contact inside the relay would move to the other direction but it didn't. 9volts is definitely > 5 volts? Is their any specific direction on which the current should flow into the coil? Or can it go either way to get the same effected.