... aluminum, fireproofing board, pearly foam 2, Voltage:110V or 220V 3, Customized designs are welcome LED Demo CaseITEM:290002Details: 1, Included ... meter, 2 dimmer switches(1 for 220V, 1 for 12V), 3 GU10 base, 4 MR16 base, 2 G24 base, 2 E27 ... base, 2 DC socket, 2 spaces for LED AR1113, Function: display and Compare various lamps, Test the power and voltage ...