along the lead lines from the remote unit is reduced to more than acceptable levels by connecting the lead lines through a terminal to a thin electrically insulating thermally conductive strip in turn the insulating strip is fixed to the heat sink to transmit heat received from the lead lines to the heat sink application_number US 16605780 A description referring to fig1 of the drawings there is shown a detail schematic diagram of a possible control circuit similar to the control circuit used in the above mentioned patents and application but incorporating the improvements of the present invention the control unit shall be designated generally by reference numeral 10 and the remote unit designated generally by reference numeral 12 the control unit 10 has an actuator arm pivotally mounted about pivot point 16 movement of the actuator arm 14 about pivot point 16 along the intermediate positions causes a simultaneous movement of the wiper arm of variable resistor 18 at the lower end of movement of the actuator arm 14 end 20 thereof strikes contactor arm 22 to break the electrical connection with normally closed contact 24 and make an electrical connection with normally open contact 26 as shown in reference lines alternatively when the actuator arm 14 is in the higher end of movement end 20 will strike the lower portion of the contactor arm 22 thereby making.