‘- Golf cart LED light upgrade kit make your golf cart has turn signal, horn, hazard flashing, brake lights functions, fits golf cart light kit with 9-pin plug wiring harness;-LED Light upgrade Kit for EZGO Yamaha Club Car 9-pin Plugs Only (Must Input 12 Volts),if your cart is 36V or 48V , you must need 36V-12V or 48V-12V Voltage reducer, if not, the LED light will be burnt out. ( Voltage reducer not include);- Plug and play for the turn signal and easy to install.- This golf cart LED light turn signal kit must be used with a universal wiring harne(NOT the original harness) and a 9-pin plug. If you unsure if it is a universal harness, please compare the wiring harneand its definition with your harneon the left wiring diagram;- 12 Volt operation(voltage reducer is required on 36v/48v), the black button on horns backside is for volume control could adjust it when power connected;- Kit includes: turn signal lever with headlight/horn switch & 9-Pin wiring harness, hazard flashing switch, controller box, steering column cover, brake pad, horn, clamps and screw set, wiring diagram instruction.