ROKETTOTO RTP SLOT If the tester bulb lights, you know the outlet is malfunctioning -- there is current flowing to the outlet, but it isn't flowing through the outlet to provide power to the appliance plugged into it. This type of tester is always used with the current turned on to determine whether there is current flowing through a wire and to test for proper grounding.|Proyek Fulgence Bienvenüe Mencakup 10 Jalur