... 100V-250V. The input Voltage is the s LED tube power meter,LED tester,Power meter,Demo box LT-AC1102 1,Input voltage ... range 100V-250V.3, Maximum testing wattage: 300W.4,Testing parameters: Voltage, Current , Power, Power factor, Annual power consumption.(Calculated ... over load short circuit.11,Compact size, small volume, very light , convenient to carry.Best after sales-servicesWith 1 year warranty ...