invention are respectively depicted as shown on the circuit board 2 an input signal is fed into a primary side 81 of the transformer 8 then an output signal is obtained at a secondary side 82 of the transformer 8 in response to the input signal on the secondary side 82 of the transformer 8 a connector 9 in which a resilient piece or a conductive rubber is provided is disposed the connector 9 may be connected directly to a load e g a lamp 7 through the resilient piece or the conductive rubber through the connector 9 the output signal of the transformer 8 can be supplied to the load 7 in a vertical e g fig6 a or horizontal e g fig6 b direction fig7 a and fig7 b are respectively a structural diagram and a side view of the transformer with a connector according to a first form of the second embodiment of the present invention as shown the transformer 8 a is composed of a winding base a core and a connector 9 a the core is inserted into the winding base the windings are wound on the winding base the transformer 8 a is a ci type core transformer the connector 9 a is disposed at a side 83 of the winding base located at the secondary side 82 a of the transformer 8 a the connector 9 a takes a form of indentation for a vertical connection with an electrode terminal 711 of a lamp 71 wherein the electrode terminal 711 is vertically inserted into and fixed on the connector 9 a in this manner the output signal from the transformer 9 a can be supplied to the lamp fig7 c and fig7 d are respectively.