watt,power factor,current,and annual power consumption for LED T8 tube tester,also ... tester LITE LED tube tester --T8 Full Range Power Meter is a very practical tester to make you ... 300W.2. It can test different lengths,different watt, single part and two parts supplier LED T8 ... .3. Testing parameters: Voltage, Wattage, Current,Power factor, Annual power consumption(calculated by 10 hrs/day)3. Equiped ...