THIS WILL ALLOW YOU TO CONNECT UP TO THE DIFFERENT TYPE CDI UNIT OF THE LIFAN 150. THIS LISTING IS FOR THE WIREING PIGTAIL ONLY THE CDI IS FOR REFERENCE ONLY. YOU MAY WANT TO GET OUR SUB-W-12/12/6/6 LISTED BELOW ON THIS PAGE 305M @ 12V_or_6V CT70 REGULATOR RECTIFIER_PIGTAIL CLICK FOR_INSTRUCTIONS (SUB_W_12/12/6/6) (S1255)YOU CAN USE A 12V REG/REC & BATTERY WITH THIS COMBINATION (MUST CHANGE ALL LIGHTS).... OR USE THE 6V REG/REC AND USE THE STOCK BATTERY AND LIGHTS....PIC SHOWS 12V... BUT JUST LEAVE THE STOCK BATTERY IN FOR 6 VOLT NOTE!! the yellow wire coming out of the reg/rec never has it's own power,, it just "T's" into the yellow wire that comes from the engine's stator wire, that then goes to the headlight dimmer switch. it takes excess voltage and delivers it back to ground. thus the regulator part of the regulator/rectifier. SUB-W-12/12/6/6 (S1255)