... show, sample test and so on. LED Demostration Case Travel bags with trolley Description: Function1. LED lamp or traditional lamp ... for GU10, E14 ,E26/E27can be tested (voltage, current, power, power factor, annual current consumption)4. AC voltage display area: Input ... switch and mark, which is convenient for identification and control.13. One storehouse is for small things; 3 foundation plates ...