... ,fluorescent tube.) LED T8 Tueb tester Measures:1. It's practical tester to identify or compare the quality of LED lamps,fluorescent lamps, halogent or ... , Annual power consumption(calculated by 10 hrs/day)3. Equiped with different converter for E27, E14, B15, B22,MR16, GU10, ... G9.Could test different bulbs with different bases. LED T8 Tueb tester Features:1. Input voltage: 100-277V . ...