This is one pair of throttle for electric bike. Brand name : WUXING Model : FT15DXD (24V 36V 48V) Effiency : ≥98% Hall Class : Imported Hall quality rubber Working voltage : Throttle DC 1-4.2 V Working current : DC 350 mAh Features Cable length: 150CM Battery LED indicator : 3 levers Switch Button Wiring : Red cable : +5V Blue cable : - negative White cable : signal Green cable : battery voltage indicator Yellow cable : + positive of switch Brown cable : - negative of switch