... % client's good feedback: Specification:Item No./ModelGC406 led digital clockColorRedDigital height4"case dimension710*160*40mmBrightnessindoor brightnessViewing Distance( ... hoursCase boxaluminum alloyCase box colorBlackControl ModeGodrelish Mainboard ControlDrive ModeStatic constant currentOptional display formatHH:MM or HH:MM:SS or ... 3",4",5",6",8",10",12",14",16",18",20",22",24",26",28",30",32",34", ...