... s practical tester to identify or compare the quality of LED lamps,fluorescent lamps, halogent or incandescent lamps,or appliances from ... different lengths,different watt, single part and two parts supplier LED T8 tube.3. Testing parameters: Voltage, Wattage, Current,Power ... MR16, GU10, G9.Could test different bulbs with different bases. LED T8 Tueb tester Features:1. Input voltage: 100-277V . The ...