... : 3.6V,40mA Ni-MHModel A: three white led lights, long press switch for ON, Undo for OFFModel B: for currency detector ... .long press switch for ON,Undo for OFFModelC:three white led lights, Click switch for ON, Re-click ... sides, one currency detector light in the middle,first press switch for currency detector, second press for flashlight, third press for ...