... Voltage. If test T8 fluorescent tube with the Magnetic ballast inside the tester, the input voltage should be AC 200V-250V,50Hz. If ... or electrical products with power plug, and no need to connect the wire in additional.8,It have different socket converters ,such as ... sockets, it could protect the over load short circuit.11,Compact size, small volume, very light , convenient to carry Best after sales ...