LED Display Case Made by aluminum, fireproofing board, pearly foam Voltage:110V or 220V Customized designs available 1. Included: multi meter, dimmer, voltage meter, current meter, various lamp base and socket2, Dimmer to control the connected bases,3, Display and Compare various lamps, Test the power of tested lamps4, Packing: 1pc/carton5, Good quality and timely shipment6, Logo printing is ...